#90B4E1
Closest named color: Light Grey Blue (#9DBCD4). oklch(76% 0.076 254.3), rgb(144, 180, 225).
Aa
Black text reads best on this color (9.80:1).
About this color
#90B4E1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.076 and its hue 254°. 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 9.80:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.80:1 |
| White text | 2.14:1 |
Values
| HEX | #90B4E1 |
| RGB | rgb(144, 180, 225) |
| HSL | hsl(213, 57%, 72%) |
| OKLCH | oklch(76% 0.076 254.3) |
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 #90B4E1 | 2.14:1 | Fails | Lc -46.7 | Large or bold text, headings |
| Black text on #90B4E1 | 9.80:1 | AAA | Lc 61.9 | Content text, not long reading |
| #90B4E1 text on white | 2.14:1 | Fails | Lc 42.0 | Non-text elements, placeholder text |
| #90B4E1 text on black | 9.80:1 | AAA | Lc -60.2 | 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 300.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF5
oklch(88.5% 0.042 255)
-
Step 300
300 (this color)
#90B4E1
oklch(76% 0.076 254.3)
-
Step 400
400
#69A3EB
oklch(70.6% 0.123 254.5)
-
Step 500
500
#3D8BE4
oklch(63.1% 0.154 253.9)
-
Step 600
600
#1472D3
oklch(55.6% 0.17 254.5)
-
Step 700
700
#015FB6
oklch(49% 0.157 254.3)
-
Step 800
800
#0A4E94
oklch(42.7% 0.131 254.5)
-
Step 900
900
#144276
oklch(37.8% 0.102 254.3)
-
Step 950
950
#0D2745
oklch(27% 0.064 254)
#90B4E1 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) | #A3B6E3 | 0.025 |
| Deuteranopia (no green cones) | #9AAEE0 | 0.019 |
| Tritanopia (no blue cones) | #76BEC3 | 0.066 |
| Achromatopsia (no color) | #B1B1B1 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90B4E1
#90B4E1
oklch(76% 0.076 254.3)
- #CEAA7B
#CEAA7B
oklch(75.9% 0.075 73.7)
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 #90B4E1, 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
- Carolina Blue #8AB8FE ΔE 0.041
- Light Cornflower Blue #98C1D9 ΔE 0.043
- Pastel Blue #A2BFFE ΔE 0.053
- Lightblue #7BC8F6 ΔE 0.055
- Cloudy Blue #ACC2D9 ΔE 0.058
- Sky #82CAFC ΔE 0.061
- French Gray #ADB5BD ΔE 0.062
Use #90B4E1 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.