#90B9BB
Closest named color: French Gray (#ADB5BD). oklch(75.7% 0.044 200), rgb(144, 185, 187).
Aa
Black text reads best on this color (9.84:1).
About this color
#90B9BB is a medium-light, muted teal or cyan. In OKLCH its lightness is 76%, its chroma 0.044 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.038 away. Black text reads best on it, at 9.84:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 9.84:1 |
| White text | 2.13:1 |
Values
| HEX | #90B9BB |
| RGB | rgb(144, 185, 187) |
| HSL | hsl(183, 24%, 65%) |
| OKLCH | oklch(75.7% 0.044 200) |
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 #90B9BB | 2.13:1 | Fails | Lc -46.5 | Large or bold text, headings |
| Black text on #90B9BB | 9.84:1 | AAA | Lc 62.1 | Content text, not long reading |
| #90B9BB text on white | 2.13:1 | Fails | Lc 41.8 | Non-text elements, placeholder text |
| #90B9BB text on black | 9.84:1 | AAA | Lc -60.4 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CEDCDD
oklch(88.4% 0.015 202)
-
Step 300
300
#ADC6C7
oklch(80.8% 0.027 199.6)
-
Step 400
400 (this color)
#90B9BB
oklch(75.7% 0.044 200)
-
Step 500
500
#5F9497
oklch(63.1% 0.056 200.4)
-
Step 600
600
#447E81
oklch(55.5% 0.061 199.9)
-
Step 700
700
#356B6D
oklch(49.2% 0.057 198.6)
-
Step 800
800
#2D5759
oklch(42.7% 0.047 199.6)
-
Step 900
900
#294849
oklch(37.8% 0.037 198.4)
-
Step 950
950
#182A2B
oklch(27% 0.024 200.3)
#90B9BB 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) | #B3B5BB | 0.045 |
| Deuteranopia (no green cones) | #ABAFBB | 0.042 |
| Tritanopia (no blue cones) | #82BCB9 | 0.018 |
| Achromatopsia (no color) | #B1B1B1 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90B9BB
#90B9BB
oklch(75.7% 0.044 200)
- #CBA6A5
#CBA6A5
oklch(75.8% 0.044 20)
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 #90B9BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.038
- Light Grey Blue #9DBCD4 ΔE 0.040
- Light Cornflower Blue #98C1D9 ΔE 0.045
- Cool Steel #97A7B3 ΔE 0.047
- Dark Gray #A9A9A9 ΔE 0.049
- Pewter #96A8A1 ΔE 0.049
- Muted Teal #90B494 ΔE 0.053
- Pale Teal #82CBB2 ΔE 0.057
Use #90B9BB 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.