#909DBD
Closest named color: Cool Gray (#8D99AE). oklch(69.7% 0.049 267.7), rgb(144, 157, 189).
Aa
Black text reads best on this color (7.74:1).
About this color
#909DBD is a medium-light, muted blue. In OKLCH its lightness is 70%, its chroma 0.049 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.023 away. Black text reads best on it, at 7.74:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.74:1 |
| White text | 2.71:1 |
Values
| HEX | #909DBD |
| RGB | rgb(144, 157, 189) |
| HSL | hsl(223, 25%, 65%) |
| OKLCH | oklch(69.7% 0.049 267.7) |
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 #909DBD | 2.71:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #909DBD | 7.74:1 | AAA | Lc 51.5 | Large or bold text, headings |
| #909DBD text on white | 2.71:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #909DBD text on black | 7.74:1 | AAA | Lc -49.3 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E5
oklch(88.5% 0.017 267.8)
-
Step 300
300
#B8C0D5
oklch(80.8% 0.031 269.1)
-
Step 400
400 (this color)
#909DBD
oklch(69.7% 0.049 267.7)
-
Step 500
500
#7989B0
oklch(63.2% 0.062 267.3)
-
Step 600
600
#62729C
oklch(55.6% 0.068 268.1)
-
Step 700
700
#516085
oklch(49.2% 0.062 267.1)
-
Step 800
800
#424E6C
oklch(42.6% 0.052 267.4)
-
Step 900
900
#384158
oklch(37.7% 0.041 267.9)
-
Step 950
950
#212633
oklch(27% 0.025 268.3)
#909DBD 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) | #939FBF | 0.007 |
| Deuteranopia (no green cones) | #8F9BBC | 0.006 |
| Tritanopia (no blue cones) | #85A3A8 | 0.043 |
| Achromatopsia (no color) | #9D9D9D | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909DBD
#909DBD
oklch(69.7% 0.049 267.7)
- #AA9C7B
#AA9C7B
oklch(69.6% 0.049 87.7)
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 #909DBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.023
- Bluey Grey #89A0B0 ΔE 0.026
- Bluegrey #85A3B2 ΔE 0.030
- Greyblue #77A1B5 ΔE 0.036
- Cool Steel #97A7B3 ΔE 0.037
- Cool Grey #95A3A6 ΔE 0.043
- Pewter #96A8A1 ΔE 0.060
- Silver Lake Blue #778DA9 ΔE 0.062
Use #909DBD 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.