#90AFE4
Closest named color: Carolina Blue (#8AB8FE). oklch(75.1% 0.084 261), rgb(144, 175, 228).
Aa
Black text reads best on this color (9.43:1).
About this color
#90AFE4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.084 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.039 away. Black text reads best on it, at 9.43:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.43:1 |
| White text | 2.22:1 |
Values
| HEX | #90AFE4 |
| RGB | rgb(144, 175, 228) |
| HSL | hsl(218, 61%, 73%) |
| OKLCH | oklch(75.1% 0.084 261) |
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 #90AFE4 | 2.22:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #90AFE4 | 9.43:1 | AAA | Lc 60.2 | Content text, not long reading |
| #90AFE4 text on white | 2.22:1 | Fails | Lc 43.8 | Non-text elements, placeholder text |
| #90AFE4 text on black | 9.43:1 | AAA | Lc -58.4 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#AEC2E3
oklch(81% 0.052 260.4)
-
Step 400
400 (this color)
#90AFE4
oklch(75.1% 0.084 261)
-
Step 500
500
#6489CB
oklch(63.1% 0.108 261.4)
-
Step 600
600
#4B72B7
oklch(55.6% 0.117 261.1)
-
Step 700
700
#3C5F9E
oklch(49% 0.109 261.3)
-
Step 800
800
#324E80
oklch(42.7% 0.09 261.2)
-
Step 900
900
#2C4167
oklch(37.7% 0.071 261.6)
-
Step 950
950
#1A263C
oklch(26.9% 0.045 261.9)
#90AFE4 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) | #9CB2E6 | 0.018 |
| Deuteranopia (no green cones) | #94AAE3 | 0.013 |
| Tritanopia (no blue cones) | #75BAC1 | 0.075 |
| Achromatopsia (no color) | #AEAEAE | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90AFE4
#90AFE4
oklch(75.1% 0.084 261)
- #CAA96F
#CAA96F
oklch(75.1% 0.085 81)
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 #90AFE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.039
- Light Grey Blue #9DBCD4 ΔE 0.051
- Pastel Blue #A2BFFE ΔE 0.057
- Light Cornflower Blue #98C1D9 ΔE 0.058
- Lightblue #7BC8F6 ΔE 0.065
- Cool Steel #97A7B3 ΔE 0.069
- Sky #82CAFC ΔE 0.071
- Cloudy Blue #ACC2D9 ΔE 0.071
Use #90AFE4 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.