#90B4AB
Closest named color: Pewter (#96A8A1). oklch(74.1% 0.041 178.2), rgb(144, 180, 171).
Aa
Black text reads best on this color (9.30:1).
About this color
#90B4AB is a medium-light, muted teal or cyan. In OKLCH its lightness is 74%, its chroma 0.041 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Pewter (#96A8A1), ΔE 0.032 away. Black text reads best on it, at 9.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Pewter (#96A8A1) |
| Black text | 9.30:1 |
| White text | 2.25:1 |
Values
| HEX | #90B4AB |
| RGB | rgb(144, 180, 171) |
| HSL | hsl(165, 19%, 64%) |
| OKLCH | oklch(74.1% 0.041 178.2) |
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 #90B4AB | 2.25:1 | Fails | Lc -49.3 | Large or bold text, headings |
| Black text on #90B4AB | 9.30:1 | AAA | Lc 59.5 | Large or bold text, headings |
| #90B4AB text on white | 2.25:1 | Fails | Lc 44.5 | Non-text elements, placeholder text |
| #90B4AB text on black | 9.30:1 | AAA | Lc -57.6 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCD9
oklch(88.5% 0.014 179.4)
-
Step 300
300
#B0C6C0
oklch(80.8% 0.025 177.5)
-
Step 400
400 (this color)
#90B4AB
oklch(74.1% 0.041 178.2)
-
Step 500
500
#669489
oklch(63% 0.053 177.9)
-
Step 600
600
#4D7F73
oklch(55.7% 0.058 177.1)
-
Step 700
700
#3D6B61
oklch(49.2% 0.053 178.4)
-
Step 800
800
#33574F
oklch(42.7% 0.044 178.3)
-
Step 900
900
#2D4842
oklch(37.8% 0.035 178.8)
-
Step 950
950
#1B2A26
oklch(27% 0.022 176.2)
#90B4AB 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) | #B1AFAB | 0.044 |
| Deuteranopia (no green cones) | #AAAAAC | 0.042 |
| Tritanopia (no blue cones) | #87B5B1 | 0.012 |
| Achromatopsia (no color) | #ACACAC | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90B4AB
#90B4AB
oklch(74.1% 0.041 178.2)
- #C2A1AB
#C2A1AB
oklch(74.1% 0.041 358)
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 #90B4AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pewter #96A8A1 ΔE 0.032
- Muted Teal #90B494 ΔE 0.033
- Dark Gray #A9A9A9 ΔE 0.042
- Cool Steel #97A7B3 ΔE 0.042
- Cool Grey #95A3A6 ΔE 0.046
- French Gray #ADB5BD ΔE 0.048
- Cement #A5A391 ΔE 0.052
- Dark Sea Green #8FBC8F ΔE 0.052
Use #90B4AB 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.