#90B3AA
Closest named color: Pewter (#96A8A1). oklch(73.8% 0.04 177.7), rgb(144, 179, 170).
Aa
Black text reads best on this color (9.21:1).
About this color
#90B3AA is a medium-light, muted teal or cyan. In OKLCH its lightness is 74%, its chroma 0.040 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Pewter (#96A8A1), ΔE 0.029 away. Black text reads best on it, at 9.21:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Pewter (#96A8A1) |
| Black text | 9.21:1 |
| White text | 2.27:1 |
Values
| HEX | #90B3AA |
| RGB | rgb(144, 179, 170) |
| HSL | hsl(165, 19%, 63%) |
| OKLCH | oklch(73.8% 0.04 177.7) |
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 #90B3AA | 2.27:1 | Fails | Lc -49.8 | Large or bold text, headings |
| Black text on #90B3AA | 9.21:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #90B3AA text on white | 2.27:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #90B3AA text on black | 9.21:1 | AAA | Lc -57.2 | 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
#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)
#90B3AA
oklch(73.8% 0.04 177.7)
-
Step 500
500
#679489
oklch(63.1% 0.052 177.6)
-
Step 600
600
#4E7E73
oklch(55.5% 0.055 178)
-
Step 700
700
#3E6B60
oklch(49.2% 0.053 176.6)
-
Step 800
800
#34574F
oklch(42.7% 0.043 178)
-
Step 900
900
#2E4841
oklch(37.8% 0.034 175.7)
-
Step 950
950
#1B2A26
oklch(27% 0.022 176.2)
#90B3AA 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) | #B0AFAA | 0.042 |
| Deuteranopia (no green cones) | #A9AAAB | 0.040 |
| Tritanopia (no blue cones) | #87B4B0 | 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°).
- #90B3AA
#90B3AA
oklch(73.8% 0.04 177.7)
- #C0A0AA
#C0A0AA
oklch(73.7% 0.04 357.4)
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 #90B3AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pewter #96A8A1 ΔE 0.029
- Muted Teal #90B494 ΔE 0.032
- Dark Gray #A9A9A9 ΔE 0.040
- Cool Steel #97A7B3 ΔE 0.041
- Cool Grey #95A3A6 ΔE 0.043
- French Gray #ADB5BD ΔE 0.049
- Cement #A5A391 ΔE 0.049
- Dark Sea Green #8FBC8F ΔE 0.053
Use #90B3AA 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.