#90909C
Closest named color: Cool Gray (#8D99AE). oklch(65.7% 0.018 285.9), rgb(144, 144, 156).
Aa
Black text reads best on this color (6.65:1).
About this color
#90909C is a medium-light close to neutral grey. In OKLCH its lightness is 66%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Cool Gray (#8D99AE), ΔE 0.030 away. Black text reads best on it, at 6.65:1.
| Hue family | Neutrals |
| Lightness | medium-light (66%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 6.65:1 |
| White text | 3.15:1 |
Values
| HEX | #90909C |
| RGB | rgb(144, 144, 156) |
| HSL | hsl(240, 6%, 59%) |
| OKLCH | oklch(65.7% 0.018 285.9) |
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 #90909C | 3.15:1 | AA large text | Lc -64.1 | Content text, not long reading |
| Black text on #90909C | 6.65:1 | AA | Lc 45.4 | Large or bold text, headings |
| #90909C text on white | 3.15:1 | AA large text | Lc 58.7 | Large or bold text, headings |
| #90909C text on black | 6.65:1 | AA | Lc -43.1 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E9E9EB
oklch(93.5% 0.003 286.3)
-
Step 200
200
#D9D9DC
oklch(88.6% 0.004 286.3)
-
Step 300
300
#C0C0C6
oklch(81% 0.008 286.2)
-
Step 400
400
#9F9FA9
oklch(70.6% 0.014 286)
-
Step 500
500 (this color)
#90909C
oklch(65.7% 0.018 285.9)
-
Step 600
600
#72727E
oklch(55.6% 0.018 285.8)
-
Step 700
700
#5F5F6B
oklch(49% 0.019 285.7)
-
Step 800
800
#4E4E57
oklch(42.7% 0.015 285.8)
-
Step 900
900
#414148
oklch(37.8% 0.012 285.8)
-
Step 950
950
#26262A
oklch(27% 0.007 285.9)
#90909C 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) | #8D919D | 0.005 |
| Deuteranopia (no green cones) | #8D919C | 0.005 |
| Tritanopia (no blue cones) | #8E9294 | 0.015 |
| Achromatopsia (no color) | #919191 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90909C
#90909C
oklch(65.7% 0.018 285.9)
- #929286
#929286
oklch(65.6% 0.017 106.9)
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 #90909C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.030
- Warm Grey #978A84 ΔE 0.034
- Blue Grey #758DA3 ΔE 0.040
- Silver Lake Blue #778DA9 ΔE 0.041
- English Lavender #9D8189 ΔE 0.043
- Light Slate Gray #778899 ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.045
- Purpley Grey #947E94 ΔE 0.048
Use #90909C 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.