#909AAA
Closest named color: Cool Gray (#8D99AE). oklch(68.3% 0.026 259.8), rgb(144, 154, 170).
Aa
Black text reads best on this color (7.38:1).
About this color
#909AAA is a medium-light close to neutral grey. In OKLCH its lightness is 68%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Cool Gray (#8D99AE), ΔE 0.008 away. Black text reads best on it, at 7.38:1.
| Hue family | Neutrals |
| Lightness | medium-light (68%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.38:1 |
| White text | 2.84:1 |
Values
| HEX | #909AAA |
| RGB | rgb(144, 154, 170) |
| HSL | hsl(217, 13%, 62%) |
| OKLCH | oklch(68.3% 0.026 259.8) |
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 #909AAA | 2.84:1 | Fails | Lc -59.8 | Large or bold text, headings |
| Black text on #909AAA | 7.38:1 | AAA | Lc 49.5 | Large or bold text, headings |
| #909AAA text on white | 2.84:1 | Fails | Lc 54.5 | Large or bold text, headings |
| #909AAA text on black | 7.38:1 | AAA | Lc -47.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9DF
oklch(88.5% 0.009 264.5)
-
Step 300
300
#BAC1CB
oklch(80.8% 0.016 257.2)
-
Step 400
400 (this color)
#909AAA
oklch(68.3% 0.026 259.8)
-
Step 500
500
#7E8A9E
oklch(63.1% 0.033 260.7)
-
Step 600
600
#677489
oklch(55.6% 0.036 260)
-
Step 700
700
#566174
oklch(49% 0.033 261.4)
-
Step 800
800
#46505F
oklch(42.8% 0.028 258.4)
-
Step 900
900
#3B424D
oklch(37.7% 0.021 259.4)
-
Step 950
950
#22272D
oklch(27% 0.013 253)
#909AAA 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) | #959BAB | 0.008 |
| Deuteranopia (no green cones) | #9298AA | 0.006 |
| Tritanopia (no blue cones) | #8A9D9F | 0.023 |
| Achromatopsia (no color) | #999999 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909AAA
#909AAA
oklch(68.3% 0.026 259.8)
- #A29888
#A29888
oklch(68.4% 0.026 79.7)
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 #909AAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.008
- Bluey Grey #89A0B0 ΔE 0.017
- Bluegrey #85A3B2 ΔE 0.026
- Cool Grey #95A3A6 ΔE 0.029
- Greyblue #77A1B5 ΔE 0.035
- Cool Steel #97A7B3 ΔE 0.037
- Pewter #96A8A1 ΔE 0.047
- Silver Lake Blue #778DA9 ΔE 0.053
Use #909AAA 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.