fix: Website colour adjustments

[asr2003]

• Fixes Website colour adjustments #5765

Proposed Changes

• Changed the root website dark and light blue to the following hex codes:
  -- Light Blue: 6593C8
  -- Dark blue: 0D4984

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: asr2003 / name: Ambati Sahithi (5a590bb, e32d86a, 06bb021, b845ea3, d04dde5, 9dc9187)

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[asr2003]

@Cali0707 It's ready for your review. PTAL

[Cali0707]

@asr2003 could you sign the CLA? It should be the link in this comment

[asr2003]

@Cali0707 Done with signing CLA.

[aliok]

@knative/ux-wg-leads is this PR good?

[Leo6Leo]

We will be approving the PRs during our next UX WG meeting. I have put the PR in the meeting agenda.

Update:
As the PR is implementing the design that UX WG has agreed on, no need for approval during the meeting.

[asr2003]

@Leo6Leo Thanks for putting this PR for next UX WG meeting. I will make sure to join the meeting and also I have some enhancements in my mind, can we discuss there or in slack?

[Leo6Leo]

@asr2003 Sure! Feel free to discuss here, or in the CNCF slack #knative-ux channel. If you think it worthy a discussion among the UX WG, you can put it on the UX WG meeting agenda here. Looking forward to having you join in our next meeting.

[Leo6Leo]

/approve
/cc @mmejia02 @zainabhusain227

[zainabhusain227]

Color scheme suggestions (from most recent design system: https://www.figma.com/design/3CzqCQj0dDK1MuTZelUfFa/Knative-Design-System?node-id=101-2&t=CAlyHn4R4uSs4qr9-0)

Changed the root website dark and light blue to the following hex codes:
-- Light Blue: #6695CA
-- Dark blue: #0865AD

[Cali0707]

@asr2003 would you mind switching the colours to those @zainabhusain227 listed above?

[asr2003]

Sure!

[asr2003]

@zainabhusain227 @Cali0707 Updated with the changes suggested

[Cali0707]

/lgtm

Thanks @asr2003 !

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: asr2003, Cali0707, Leo6Leo

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[asr2003]

@Cali0707 Thanks for merging! I am following up with this PR to get merged from a week. Finally merged :)

Thanks @Cali0707 @Leo6Leo @zainabhusain227 for approving and special thanks to @aliok for an immediate response for getting reviews for this PR.