#90AFF4
Closest named color: Carolina Blue (#8AB8FE). oklch(75.8% 0.106 265.4), rgb(144, 175, 244).
Aa
Black text reads best on this color (9.62:1).
About this color
#90AFF4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.106 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.024 away. Black text reads best on it, at 9.62:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.62:1 |
| White text | 2.18:1 |
Values
| HEX | #90AFF4 |
| RGB | rgb(144, 175, 244) |
| HSL | hsl(221, 82%, 76%) |
| OKLCH | oklch(75.8% 0.106 265.4) |
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 #90AFF4 | 2.18:1 | Fails | Lc -47.6 | Large or bold text, headings |
| Black text on #90AFF4 | 9.62:1 | AAA | Lc 61.1 | Content text, not long reading |
| #90AFF4 text on white | 2.18:1 | Fails | Lc 42.9 | Non-text elements, placeholder text |
| #90AFF4 text on black | 9.62:1 | AAA | Lc -59.3 | Large or bold text, headings |
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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CDD9F2
oklch(88.4% 0.037 265.1)
-
Step 300
300
#ACC1EC
oklch(81% 0.065 264.5)
-
Step 400
400 (this color)
#90AFF4
oklch(75.8% 0.106 265.4)
-
Step 500
500
#6286DB
oklch(63.2% 0.135 265.4)
-
Step 600
600
#496EC8
oklch(55.6% 0.146 265.2)
-
Step 700
700
#3B5BAD
oklch(49.1% 0.136 265.6)
-
Step 800
800
#304B8C
oklch(42.7% 0.113 265)
-
Step 900
900
#2B3F70
oklch(37.7% 0.088 265.7)
-
Step 950
950
#192542
oklch(27% 0.057 265.8)
#90AFF4 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) | #97B4F7 | 0.017 |
| Deuteranopia (no green cones) | #8DABF2 | 0.012 |
| Tritanopia (no blue cones) | #6EBDC7 | 0.094 |
| Achromatopsia (no color) | #AFAFAF | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90AFF4
#90AFF4
oklch(75.8% 0.106 265.4)
- #CFAB5D
#CFAB5D
oklch(75.7% 0.106 85)
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 #90AFF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.024
- Pastel Blue #A2BFFE ΔE 0.050
- Periwinkle Blue #8F99FB ΔE 0.061
- Lightblue #7BC8F6 ΔE 0.067
- Light Grey Blue #9DBCD4 ΔE 0.069
- Sky #82CAFC ΔE 0.070
- Light Cornflower Blue #98C1D9 ΔE 0.072
- Light Sky Blue #87CEFA ΔE 0.081
Use #90AFF4 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.