#909BCD
Closest named color: Cool Gray (#8D99AE). oklch(69.9% 0.075 274.7), rgb(144, 155, 205).
Aa
Black text reads best on this color (7.75:1).
About this color
#909BCD is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.075 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.046 away. Black text reads best on it, at 7.75:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.75:1 |
| White text | 2.70:1 |
Values
| HEX | #909BCD |
| RGB | rgb(144, 155, 205) |
| HSL | hsl(229, 38%, 68%) |
| OKLCH | oklch(69.9% 0.075 274.7) |
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 #909BCD | 2.70:1 | Fails | Lc -57.7 | Large or bold text, headings |
| Black text on #909BCD | 7.75:1 | AAA | Lc 51.6 | Large or bold text, headings |
| #909BCD text on white | 2.70:1 | Fails | Lc 52.5 | Large or bold text, headings |
| #909BCD text on black | 7.75:1 | AAA | Lc -49.4 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EB
oklch(88.5% 0.026 276.4)
-
Step 300
300
#B7BFDF
oklch(80.9% 0.046 274.3)
-
Step 400
400 (this color)
#909BCD
oklch(69.9% 0.075 274.7)
-
Step 500
500
#7885C3
oklch(63.1% 0.095 274.3)
-
Step 600
600
#626EB0
oklch(55.8% 0.103 274.7)
-
Step 700
700
#515B97
oklch(49.1% 0.097 275.1)
-
Step 800
800
#424B7A
oklch(42.7% 0.079 274.4)
-
Step 900
900
#383F63
oklch(37.8% 0.062 274.7)
-
Step 950
950
#21253A
oklch(27.1% 0.04 275.2)
#909BCD 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) | #8CA0CF | 0.013 |
| Deuteranopia (no green cones) | #889BCC | 0.011 |
| Tritanopia (no blue cones) | #80A4AC | 0.066 |
| Achromatopsia (no color) | #9D9D9D | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909BCD
#909BCD
oklch(69.9% 0.075 274.7)
- #AD9E68
#AD9E68
oklch(69.9% 0.074 94.4)
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 #909BCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.046
- Bluey Grey #89A0B0 ΔE 0.051
- Bluegrey #85A3B2 ΔE 0.054
- Greyblue #77A1B5 ΔE 0.055
- Cool Steel #97A7B3 ΔE 0.059
- Perrywinkle #8F8CE7 ΔE 0.063
- Pale Purple #B790D4 ΔE 0.064
- Cool Grey #95A3A6 ΔE 0.069
Use #909BCD 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.