#90B8BF
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.6% 0.044 209.4), rgb(144, 184, 191).
Aa
Black text reads best on this color (9.79:1).
About this color
#90B8BF is a medium-light, muted teal or cyan. In OKLCH its lightness is 76%, its chroma 0.044 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.035 away. Black text reads best on it, at 9.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.79:1 |
| White text | 2.14:1 |
Values
| HEX | #90B8BF |
| RGB | rgb(144, 184, 191) |
| HSL | hsl(189, 27%, 66%) |
| OKLCH | oklch(75.6% 0.044 209.4) |
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 #90B8BF | 2.14:1 | Fails | Lc -46.8 | Large or bold text, headings |
| Black text on #90B8BF | 9.79:1 | AAA | Lc 61.9 | Content text, not long reading |
| #90B8BF text on white | 2.14:1 | Fails | Lc 42.1 | Non-text elements, placeholder text |
| #90B8BF text on black | 9.79:1 | AAA | Lc -60.1 | Content text, not long reading |
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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CEDCDF
oklch(88.5% 0.016 212)
-
Step 300
300
#ADC6CA
oklch(80.9% 0.028 208.3)
-
Step 400
400 (this color)
#90B8BF
oklch(75.6% 0.044 209.4)
-
Step 500
500
#60939C
oklch(63.1% 0.056 209.8)
-
Step 600
600
#457D87
oklch(55.5% 0.061 210.3)
-
Step 700
700
#366A72
oklch(49.2% 0.057 208.5)
-
Step 800
800
#2E565D
oklch(42.7% 0.047 210)
-
Step 900
900
#29474C
oklch(37.7% 0.037 209.2)
-
Step 950
950
#192A2D
oklch(27.1% 0.023 209.7)
#90B8BF 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) | #B1B5BF | 0.042 |
| Deuteranopia (no green cones) | #A9AEBF | 0.040 |
| Tritanopia (no blue cones) | #81BCBA | 0.022 |
| Achromatopsia (no color) | #B1B1B1 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90B8BF
#90B8BF
oklch(75.6% 0.044 209.4)
- #CAA6A0
#CAA6A0
oklch(75.6% 0.043 29.2)
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 #90B8BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.035
- French Gray #ADB5BD ΔE 0.036
- Light Cornflower Blue #98C1D9 ΔE 0.041
- Cool Steel #97A7B3 ΔE 0.044
- Dark Gray #A9A9A9 ΔE 0.049
- Pewter #96A8A1 ΔE 0.050
- Cloudy Blue #ACC2D9 ΔE 0.057
- Cool Grey #95A3A6 ΔE 0.058
Use #90B8BF 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.