#90BBE6
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.7% 0.077 248.8), rgb(144, 187, 230).
Aa
Black text reads best on this color (10.43:1).
About this color
#90BBE6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.077 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.030 away. Black text reads best on it, at 10.43:1.
| Hue family | Blues |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.43:1 |
| White text | 2.01:1 |
Values
| HEX | #90BBE6 |
| RGB | rgb(144, 187, 230) |
| HSL | hsl(210, 63%, 73%) |
| OKLCH | oklch(77.7% 0.077 248.8) |
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 #90BBE6 | 2.01:1 | Fails | Lc -43.5 | Non-text elements, placeholder text |
| Black text on #90BBE6 | 10.43:1 | AAA | Lc 64.9 | Content text, not long reading |
| #90BBE6 text on white | 2.01:1 | Fails | Lc 39.0 | Non-text elements, placeholder text |
| #90BBE6 text on black | 10.43:1 | AAA | Lc -63.4 | 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 300.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFECF9
oklch(93.7% 0.022 248.1)
-
Step 200
200
#C4DCF5
oklch(88.5% 0.043 249.4)
-
Step 300
300 (this color)
#90BBE6
oklch(77.7% 0.077 248.8)
-
Step 400
400
#5FA6EA
oklch(70.7% 0.123 249)
-
Step 500
500
#268EE3
oklch(63.2% 0.157 248.7)
-
Step 600
600
#0076C8
oklch(55.5% 0.154 249.2)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#014475
oklch(37.8% 0.102 248.5)
-
Step 950
950
#072844
oklch(27% 0.064 248.5)
#90BBE6 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) | #AABCE8 | 0.032 |
| Deuteranopia (no green cones) | #A0B3E5 | 0.027 |
| Tritanopia (no blue cones) | #73C5C9 | 0.066 |
| Achromatopsia (no color) | #B7B7B7 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90BBE6
#90BBE6
oklch(77.7% 0.077 248.8)
- #D7AE81
#D7AE81
oklch(77.7% 0.077 68.9)
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 #90BBE6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.030
- Light Cornflower Blue #98C1D9 ΔE 0.030
- Lightblue #7BC8F6 ΔE 0.038
- Carolina Blue #8AB8FE ΔE 0.039
- Pastel Blue #A2BFFE ΔE 0.042
- Sky #82CAFC ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.046
- Sky Blue #87CEEB ΔE 0.050
Use #90BBE6 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.