#909EB3
Closest named color: Bluey Grey (#89A0B0). oklch(69.5% 0.035 258.4), rgb(144, 158, 179).
Aa
Black text reads best on this color (7.72:1).
About this color
#909EB3 is a medium-light, muted blue. In OKLCH its lightness is 70%, its chroma 0.035 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Grey (#89A0B0), ΔE 0.012 away. Black text reads best on it, at 7.72:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Bluey Grey (#89A0B0) |
| Black text | 7.72:1 |
| White text | 2.71:1 |
Values
| HEX | #909EB3 |
| RGB | rgb(144, 158, 179) |
| HSL | hsl(216, 19%, 63%) |
| OKLCH | oklch(69.5% 0.035 258.4) |
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 #909EB3 | 2.71:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #909EB3 | 7.72:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #909EB3 text on white | 2.71:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #909EB3 text on black | 7.72:1 | AAA | Lc -49.2 | 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
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4D9E1
oklch(88.4% 0.012 259.8)
-
Step 300
300
#B8C1CF
oklch(80.8% 0.022 259.2)
-
Step 400
400 (this color)
#909EB3
oklch(69.5% 0.035 258.4)
-
Step 500
500
#798BA5
oklch(63.2% 0.045 257.5)
-
Step 600
600
#627490
oklch(55.5% 0.049 259.1)
-
Step 700
700
#51627A
oklch(49.1% 0.044 257)
-
Step 800
800
#435064
oklch(42.8% 0.037 258.9)
-
Step 900
900
#384251
oklch(37.6% 0.029 258.4)
-
Step 950
950
#212730
oklch(27.1% 0.019 258.4)
#909EB3 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) | #979FB4 | 0.010 |
| Deuteranopia (no green cones) | #939BB3 | 0.009 |
| Tritanopia (no blue cones) | #87A2A5 | 0.030 |
| Achromatopsia (no color) | #9D9D9D | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909EB3
#909EB3
oklch(69.5% 0.035 258.4)
- #A99B85
#A99B85
oklch(69.6% 0.035 79.2)
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 #909EB3, 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 0.019
- Cool Steel #97A7B3 ΔE 0.028
- Cool Grey #95A3A6 ΔE 0.028
- Greyblue #77A1B5 ΔE 0.031
- Pewter #96A8A1 ΔE 0.046
- Dark Gray #A9A9A9 ΔE 0.053
Use #909EB3 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.