#90AAAC
Closest named color: Pewter (#96A8A1). oklch(71.9% 0.029 202.2), rgb(144, 170, 172).
Aa
Black text reads best on this color (8.53:1).
About this color
#90AAAC is a medium-light close to neutral grey. In OKLCH its lightness is 72%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Pewter (#96A8A1), ΔE 0.016 away. Black text reads best on it, at 8.53:1.
| Hue family | Neutrals |
| Lightness | medium-light (72%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Pewter (#96A8A1) |
| Black text | 8.53:1 |
| White text | 2.46:1 |
Values
| HEX | #90AAAC |
| RGB | rgb(144, 170, 172) |
| HSL | hsl(184, 14%, 62%) |
| OKLCH | oklch(71.9% 0.029 202.2) |
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 #90AAAC | 2.46:1 | Fails | Lc -53.4 | Large or bold text, headings |
| Black text on #90AAAC | 8.53:1 | AAA | Lc 55.6 | Large or bold text, headings |
| #90AAAC text on white | 2.46:1 | Fails | Lc 48.4 | Large or bold text, headings |
| #90AAAC text on black | 8.53:1 | AAA | Lc -53.6 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEB
oklch(93.6% 0.005 197.1)
-
Step 200
200
#D2DBDC
oklch(88.5% 0.01 204.9)
-
Step 300
300
#B4C4C6
oklch(80.9% 0.018 205.8)
-
Step 400
400 (this color)
#90AAAC
oklch(71.9% 0.029 202.2)
-
Step 500
500
#709093
oklch(63% 0.036 203.4)
-
Step 600
600
#577B7D
oklch(55.7% 0.041 200.4)
-
Step 700
700
#47676A
oklch(49% 0.037 203.3)
-
Step 800
800
#3B5456
oklch(42.6% 0.03 202.3)
-
Step 900
900
#334647
oklch(37.8% 0.024 200.2)
-
Step 950
950
#1E292A
oklch(27.1% 0.015 203.2)
#90AAAC 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) | #A6A7AC | 0.030 |
| Deuteranopia (no green cones) | #A1A3AC | 0.028 |
| Tritanopia (no blue cones) | #88ACAB | 0.011 |
| Achromatopsia (no color) | #A5A5A5 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90AAAC
#90AAAC
oklch(71.9% 0.029 202.2)
- #B69E9C
#B69E9C
oklch(72% 0.029 23.5)
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 #90AAAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pewter #96A8A1 ΔE 0.016
- Cool Steel #97A7B3 ΔE 0.018
- Cool Grey #95A3A6 ΔE 0.019
- Bluegrey #85A3B2 ΔE 0.029
- Bluey Grey #89A0B0 ΔE 0.033
- Dark Gray #A9A9A9 ΔE 0.033
- Cement #A5A391 ΔE 0.042
- Greyblue #77A1B5 ΔE 0.046
Use #90AAAC 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.