#909BB2
Closest named color: Cool Gray (#8D99AE). oklch(68.8% 0.036 265.1), rgb(144, 155, 178).
Aa
Black text reads best on this color (7.51:1).
About this color
#909BB2 is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.036 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.009 away. Black text reads best on it, at 7.51:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.51:1 |
| White text | 2.79:1 |
Values
| HEX | #909BB2 |
| RGB | rgb(144, 155, 178) |
| HSL | hsl(221, 18%, 63%) |
| OKLCH | oklch(68.8% 0.036 265.1) |
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 #909BB2 | 2.79:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #909BB2 | 7.51:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #909BB2 text on white | 2.79:1 | Fails | Lc 53.8 | Large or bold text, headings |
| #909BB2 text on black | 7.51:1 | AAA | Lc -48.0 | 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
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#B9C1D0
oklch(80.9% 0.023 263.2)
-
Step 400
400 (this color)
#909BB2
oklch(68.8% 0.036 265.1)
-
Step 500
500
#7C89A6
oklch(63% 0.046 266.1)
-
Step 600
600
#657391
oklch(55.5% 0.05 265.3)
-
Step 700
700
#54617C
oklch(49.2% 0.046 264.7)
-
Step 800
800
#454F65
oklch(42.8% 0.039 265.7)
-
Step 900
900
#3A4252
oklch(37.8% 0.029 264.1)
-
Step 950
950
#222630
oklch(26.9% 0.02 267.9)
#909BB2 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) | #949CB3 | 0.007 |
| Deuteranopia (no green cones) | #9199B1 | 0.005 |
| Tritanopia (no blue cones) | #889FA2 | 0.032 |
| Achromatopsia (no color) | #9B9B9B | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909BB2
#909BB2
oklch(68.8% 0.036 265.1)
- #A59A82
#A59A82
oklch(68.9% 0.036 86.3)
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 #909BB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.009
- Bluey Grey #89A0B0 ΔE 0.017
- Bluegrey #85A3B2 ΔE 0.025
- Greyblue #77A1B5 ΔE 0.033
- Cool Grey #95A3A6 ΔE 0.034
- Cool Steel #97A7B3 ΔE 0.036
- Pewter #96A8A1 ΔE 0.052
- Silver Lake Blue #778DA9 ΔE 0.054
Use #909BB2 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.