#6590AE
Closest named color: Silver Lake Blue (#778DA9). oklch(63.4% 0.065 239.5), rgb(101, 144, 174).
Aa
Black text reads best on this color (6.15:1).
About this color
#6590AE is a medium-light, muted blue. In OKLCH its lightness is 63%, its chroma 0.065 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Silver Lake Blue (#778DA9), ΔE 0.022 away. Black text reads best on it, at 6.15:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Silver Lake Blue (#778DA9) |
| Black text | 6.15:1 |
| White text | 3.41:1 |
Values
| HEX | #6590AE |
| RGB | rgb(101, 144, 174) |
| HSL | hsl(205, 31%, 54%) |
| OKLCH | oklch(63.4% 0.065 239.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #6590AE | 3.41:1 | AA large text | Lc -67.0 | Content text, not long reading |
| Black text on #6590AE | 6.15:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #6590AE text on white | 3.41:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #6590AE text on black | 6.15:1 | AA | Lc -40.1 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE4
oklch(88.5% 0.018 240)
-
Step 300
300
#AFC4D3
oklch(80.9% 0.031 238.9)
-
Step 400
400
#84A6BE
oklch(70.8% 0.051 239.2)
-
Step 500
500 (this color)
#6590AE
oklch(63.4% 0.065 239.5)
-
Step 600
600
#4A7999
oklch(55.6% 0.072 239.6)
-
Step 700
700
#3B6682
oklch(49.1% 0.066 238.6)
-
Step 800
800
#32536A
oklch(42.7% 0.054 240.2)
-
Step 900
900
#2C4556
oklch(37.8% 0.042 239.1)
-
Step 950
950
#1A2832
oklch(26.9% 0.027 240.1)
#6590AE with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #838FAF | 0.038 |
| Deuteranopia (no green cones) | #7987AD | 0.033 |
| Tritanopia (no blue cones) | #49989A | 0.052 |
| Achromatopsia (no color) | #8B8B8B | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6590AE
#6590AE
oklch(63.4% 0.065 239.5)
- #A88162
#A88162
oklch(63.3% 0.065 59.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6590AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver Lake Blue #778DA9 ΔE 0.022
- Blue Grey #758DA3 ΔE 0.023
- Faded Blue #658CBB ΔE 0.026
- Dusty Blue #5A86AD ΔE 0.033
- Light Slate Gray #778899 ΔE 0.037
- Off Blue #5684AE ΔE 0.041
- Steel #738595 ΔE 0.042
- Cadet Blue #5F9EA0 ΔE 0.052
Use #6590AE in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.