#909DAA
Closest named color: Bluey Grey (#89A0B0). oklch(69% 0.024 248.2), rgb(144, 157, 170).
Aa
Black text reads best on this color (7.58:1).
About this color
#909DAA is a medium-light close to neutral grey. In OKLCH its lightness is 69%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Bluey Grey (#89A0B0), ΔE 0.012 away. Black text reads best on it, at 7.58:1.
| Hue family | Neutrals |
| Lightness | medium-light (69%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Bluey Grey (#89A0B0) |
| Black text | 7.58:1 |
| White text | 2.76:1 |
Values
| HEX | #909DAA |
| RGB | rgb(144, 157, 170) |
| HSL | hsl(210, 13%, 62%) |
| OKLCH | oklch(69% 0.024 248.2) |
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 #909DAA | 2.76:1 | Fails | Lc -58.7 | Large or bold text, headings |
| Black text on #909DAA | 7.58:1 | AAA | Lc 50.6 | Large or bold text, headings |
| #909DAA text on white | 2.76:1 | Fails | Lc 53.4 | Large or bold text, headings |
| #909DAA text on black | 7.58:1 | AAA | Lc -48.4 | 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
#D5DADE
oklch(88.6% 0.008 241.7)
-
Step 300
300
#B9C2CA
oklch(80.9% 0.015 244.8)
-
Step 400
400 (this color)
#909DAA
oklch(69% 0.024 248.2)
-
Step 500
500
#7B8C9C
oklch(63.2% 0.031 246.7)
-
Step 600
600
#647587
oklch(55.5% 0.035 249.9)
-
Step 700
700
#536372
oklch(49.2% 0.031 246.7)
-
Step 800
800
#44505D
oklch(42.6% 0.027 250.5)
-
Step 900
900
#39434C
oklch(37.7% 0.02 245.5)
-
Step 950
950
#22272D
oklch(27% 0.013 253)
#909DAA 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) | #989DAB | 0.011 |
| Deuteranopia (no green cones) | #959AAA | 0.010 |
| Tritanopia (no blue cones) | #8AA0A1 | 0.020 |
| Achromatopsia (no color) | #9B9B9B | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909DAA
#909DAA
oklch(69% 0.024 248.2)
- #A6998C
#A6998C
oklch(69.1% 0.024 67.4)
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 #909DAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Grey #89A0B0 ΔE 0.012
- Cool Gray #8D99AE ΔE 0.015
- Bluegrey #85A3B2 ΔE 0.020
- Cool Grey #95A3A6 ΔE 0.021
- Cool Steel #97A7B3 ΔE 0.030
- Greyblue #77A1B5 ΔE 0.033
- Pewter #96A8A1 ΔE 0.039
- Dark Gray #A9A9A9 ΔE 0.051
Use #909DAA 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.