#90B9BE
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.8% 0.044 205.5), rgb(144, 185, 190).
Aa
Black text reads best on this color (9.86:1).
About this color
#90B9BE is a medium-light, muted teal or cyan. In OKLCH its lightness is 76%, its chroma 0.044 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.037 away. Black text reads best on it, at 9.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.86:1 |
| White text | 2.12:1 |
Values
| HEX | #90B9BE |
| RGB | rgb(144, 185, 190) |
| HSL | hsl(187, 26%, 65%) |
| OKLCH | oklch(75.8% 0.044 205.5) |
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 #90B9BE | 2.12:1 | Fails | Lc -46.4 | Large or bold text, headings |
| Black text on #90B9BE | 9.86:1 | AAA | Lc 62.2 | Content text, not long reading |
| #90B9BE text on white | 2.12:1 | Fails | Lc 41.7 | Non-text elements, placeholder text |
| #90B9BE text on black | 9.86:1 | AAA | Lc -60.5 | 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
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CEDCDE
oklch(88.4% 0.015 207.1)
-
Step 300
300
#ADC6C9
oklch(80.9% 0.027 205.4)
-
Step 400
400 (this color)
#90B9BE
oklch(75.8% 0.044 205.5)
-
Step 500
500
#5F949A
oklch(63.2% 0.057 204.9)
-
Step 600
600
#447E85
oklch(55.6% 0.062 205.7)
-
Step 700
700
#356A70
oklch(49% 0.057 205.1)
-
Step 800
800
#2D575C
oklch(42.8% 0.048 205.5)
-
Step 900
900
#29474B
oklch(37.6% 0.036 206.5)
-
Step 950
950
#182A2C
oklch(27% 0.024 204.7)
#90B9BE 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) | #B2B5BE | 0.044 |
| Deuteranopia (no green cones) | #AAAFBE | 0.041 |
| Tritanopia (no blue cones) | #81BCBA | 0.020 |
| Achromatopsia (no color) | #B2B2B2 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90B9BE
#90B9BE
oklch(75.8% 0.044 205.5)
- #CBA6A2
#CBA6A2
oklch(75.7% 0.044 25.4)
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 #90B9BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.037
- French Gray #ADB5BD ΔE 0.037
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Cool Steel #97A7B3 ΔE 0.047
- Dark Gray #A9A9A9 ΔE 0.050
- Pewter #96A8A1 ΔE 0.051
- Cloudy Blue #ACC2D9 ΔE 0.057
- Muted Teal #90B494 ΔE 0.057
Use #90B9BE 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.