#90AAA4
Closest named color: Pewter (#96A8A1). oklch(71.6% 0.03 179.9), rgb(144, 170, 164).
Aa
Black text reads best on this color (8.47:1).
About this color
#90AAA4 is a medium-light, muted teal or cyan. In OKLCH its lightness is 72%, its chroma 0.030 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Pewter (#96A8A1), ΔE 0.009 away. Black text reads best on it, at 8.47:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | Pewter (#96A8A1) |
| Black text | 8.47:1 |
| White text | 2.47:1 |
Values
| HEX | #90AAA4 |
| RGB | rgb(144, 170, 164) |
| HSL | hsl(166, 13%, 62%) |
| OKLCH | oklch(71.6% 0.03 179.9) |
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 #90AAA4 | 2.47:1 | Fails | Lc -53.8 | Large or bold text, headings |
| Black text on #90AAA4 | 8.47:1 | AAA | Lc 55.3 | Large or bold text, headings |
| #90AAA4 text on white | 2.47:1 | Fails | Lc 48.7 | Large or bold text, headings |
| #90AAA4 text on black | 8.47:1 | AAA | Lc -53.3 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D2DBD9
oklch(88.4% 0.01 181.4)
-
Step 300
300
#B4C5C1
oklch(80.9% 0.019 180.1)
-
Step 400
400 (this color)
#90AAA4
oklch(71.6% 0.03 179.9)
-
Step 500
500
#71918A
oklch(63% 0.037 180.2)
-
Step 600
600
#587C74
oklch(55.7% 0.043 179.3)
-
Step 700
700
#486861
oklch(49% 0.039 179.5)
-
Step 800
800
#3C5550
oklch(42.8% 0.031 181)
-
Step 900
900
#334642
oklch(37.7% 0.025 180.5)
-
Step 950
950
#1E2927
oklch(27% 0.016 182.8)
#90AAA4 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) | #A8A7A4 | 0.033 |
| Deuteranopia (no green cones) | #A2A3A4 | 0.029 |
| Tritanopia (no blue cones) | #8AABA8 | 0.008 |
| Achromatopsia (no color) | #A4A4A4 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90AAA4
#90AAA4
oklch(71.6% 0.03 179.9)
- #B49CA3
#B49CA3
oklch(71.6% 0.03 358.4)
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 #90AAA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pewter #96A8A1 ΔE 0.009
- Cool Grey #95A3A6 ΔE 0.021
- Cool Steel #97A7B3 ΔE 0.028
- Dark Gray #A9A9A9 ΔE 0.035
- Cement #A5A391 ΔE 0.035
- Bluegrey #85A3B2 ΔE 0.036
- Bluey Grey #89A0B0 ΔE 0.039
- Muted Teal #90B494 ΔE 0.042
Use #90AAA4 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.