#90AABD
Closest named color: Cool Steel (#97A7B3). oklch(72.5% 0.04 239.8), rgb(144, 170, 189).
Aa
Black text reads best on this color (8.67:1).
About this color
#90AABD is a medium-light, muted blue. In OKLCH its lightness is 72%, its chroma 0.040 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.016 away. Black text reads best on it, at 8.67:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.67:1 |
| White text | 2.42:1 |
Values
| HEX | #90AABD |
| RGB | rgb(144, 170, 189) |
| HSL | hsl(205, 25%, 65%) |
| OKLCH | oklch(72.5% 0.04 239.8) |
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 #90AABD | 2.42:1 | Fails | Lc -52.7 | Large or bold text, headings |
| Black text on #90AABD | 8.67:1 | AAA | Lc 56.3 | Large or bold text, headings |
| #90AABD text on white | 2.42:1 | Fails | Lc 47.7 | Large or bold text, headings |
| #90AABD text on black | 8.67:1 | AAA | Lc -54.3 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBEE
oklch(93.7% 0.007 233.6)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B3C3CF
oklch(80.9% 0.024 240.2)
-
Step 400
400 (this color)
#90AABD
oklch(72.5% 0.04 239.8)
-
Step 500
500
#6D8EA6
oklch(63.1% 0.052 240.2)
-
Step 600
600
#557891
oklch(55.6% 0.056 240.1)
-
Step 700
700
#45657B
oklch(49.1% 0.051 239.2)
-
Step 800
800
#395264
oklch(42.6% 0.043 240.3)
-
Step 900
900
#314452
oklch(37.6% 0.034 240.7)
-
Step 950
950
#1D2830
oklch(27% 0.021 240.1)
#90AABD 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) | #A2A9BE | 0.024 |
| Deuteranopia (no green cones) | #9CA4BD | 0.022 |
| Tritanopia (no blue cones) | #83AFB0 | 0.032 |
| Achromatopsia (no color) | #A6A6A6 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90AABD
#90AABD
oklch(72.5% 0.04 239.8)
- #BAA18D
#BAA18D
oklch(72.6% 0.041 60.8)
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 #90AABD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.016
- Bluegrey #85A3B2 ΔE 0.028
- Bluey Grey #89A0B0 ΔE 0.032
- Cool Grey #95A3A6 ΔE 0.033
- Pewter #96A8A1 ΔE 0.039
- Dark Gray #A9A9A9 ΔE 0.041
- Greyblue #77A1B5 ΔE 0.043
- Cool Gray #8D99AE ΔE 0.047
Use #90AABD 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.