#90ABB8
Closest named color: Cool Steel (#97A7B3). oklch(72.5% 0.035 228.5), rgb(144, 171, 184).
Aa
Black text reads best on this color (8.70:1).
About this color
#90ABB8 is a medium-light, muted teal or cyan. In OKLCH its lightness is 73%, its chroma 0.035 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.013 away. Black text reads best on it, at 8.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.70:1 |
| White text | 2.41:1 |
Values
| HEX | #90ABB8 |
| RGB | rgb(144, 171, 184) |
| HSL | hsl(200, 22%, 64%) |
| OKLCH | oklch(72.5% 0.035 228.5) |
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 #90ABB8 | 2.41:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #90ABB8 | 8.70:1 | AAA | Lc 56.5 | Large or bold text, headings |
| #90ABB8 text on white | 2.41:1 | Fails | Lc 47.5 | Large or bold text, headings |
| #90ABB8 text on black | 8.70:1 | AAA | Lc -54.5 | 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
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D1DBE0
oklch(88.5% 0.013 228.9)
-
Step 300
300
#B3C4CC
oklch(81% 0.022 227.6)
-
Step 400
400 (this color)
#90ABB8
oklch(72.5% 0.035 228.5)
-
Step 500
500
#6D8F9F
oklch(63% 0.045 228.4)
-
Step 600
600
#55798A
oklch(55.5% 0.048 228.9)
-
Step 700
700
#456675
oklch(49.1% 0.045 228.1)
-
Step 800
800
#395360
oklch(42.7% 0.038 230.4)
-
Step 900
900
#31454E
oklch(37.7% 0.029 227.5)
-
Step 950
950
#1D282E
oklch(26.9% 0.019 232.2)
#90ABB8 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) | #A4AAB9 | 0.026 |
| Deuteranopia (no green cones) | #9EA5B8 | 0.023 |
| Tritanopia (no blue cones) | #85AFAF | 0.024 |
| Achromatopsia (no color) | #A7A7A7 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90ABB8
#90ABB8
oklch(72.5% 0.035 228.5)
- #BAA093
#BAA093
oklch(72.5% 0.036 48.2)
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 #90ABB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.013
- Bluegrey #85A3B2 ΔE 0.028
- Cool Grey #95A3A6 ΔE 0.028
- Pewter #96A8A1 ΔE 0.032
- Bluey Grey #89A0B0 ΔE 0.032
- Dark Gray #A9A9A9 ΔE 0.037
- Greyblue #77A1B5 ΔE 0.044
- Cool Gray #8D99AE ΔE 0.049
Use #90ABB8 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.