#90ACA4
Closest named color: Pewter (#96A8A1). oklch(72.1% 0.033 176.2), rgb(144, 172, 164).
Aa
Black text reads best on this color (8.62:1).
About this color
#90ACA4 is a medium-light, muted teal or cyan. In OKLCH its lightness is 72%, its chroma 0.033 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Pewter (#96A8A1), ΔE 0.012 away. Black text reads best on it, at 8.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Pewter (#96A8A1) |
| Black text | 8.62:1 |
| White text | 2.43:1 |
Values
| HEX | #90ACA4 |
| RGB | rgb(144, 172, 164) |
| HSL | hsl(163, 14%, 62%) |
| OKLCH | oklch(72.1% 0.033 176.2) |
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 #90ACA4 | 2.43:1 | Fails | Lc -52.9 | Large or bold text, headings |
| Black text on #90ACA4 | 8.62:1 | AAA | Lc 56.1 | Large or bold text, headings |
| #90ACA4 text on white | 2.43:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #90ACA4 text on black | 8.62:1 | AAA | Lc -54.1 | 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
#D2DCD9
oklch(88.6% 0.012 176.3)
-
Step 300
300
#B4C5C0
oklch(80.9% 0.02 176.3)
-
Step 400
400 (this color)
#90ACA4
oklch(72.1% 0.033 176.2)
-
Step 500
500
#6F9288
oklch(63.1% 0.042 175.5)
-
Step 600
600
#567C72
oklch(55.5% 0.046 176.4)
-
Step 700
700
#466960
oklch(49.1% 0.043 176.6)
-
Step 800
800
#3A564E
oklch(42.8% 0.036 174.8)
-
Step 900
900
#324741
oklch(37.8% 0.028 175.2)
-
Step 950
950
#1E2926
oklch(26.9% 0.016 176.5)
#90ACA4 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) | #AAA8A4 | 0.036 |
| Deuteranopia (no green cones) | #A4A4A5 | 0.034 |
| Tritanopia (no blue cones) | #89ADA9 | 0.010 |
| Achromatopsia (no color) | #A6A6A6 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90ACA4
#90ACA4
oklch(72.1% 0.033 176.2)
- #B79DA5
#B79DA5
oklch(72.1% 0.033 357.4)
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 #90ACA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pewter #96A8A1 ΔE 0.012
- Cool Grey #95A3A6 ΔE 0.027
- Cool Steel #97A7B3 ΔE 0.032
- Dark Gray #A9A9A9 ΔE 0.036
- Cement #A5A391 ΔE 0.037
- Muted Teal #90B494 ΔE 0.037
- Bluegrey #85A3B2 ΔE 0.040
- Bluey Grey #89A0B0 ΔE 0.045
Use #90ACA4 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.