#90AEF1
Closest named color: Carolina Blue (#8AB8FE). oklch(75.4% 0.103 265.5), rgb(144, 174, 241).
Aa
Black text reads best on this color (9.51:1).
About this color
#90AEF1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.103 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.028 away. Black text reads best on it, at 9.51:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.51:1 |
| White text | 2.20:1 |
Values
| HEX | #90AEF1 |
| RGB | rgb(144, 174, 241) |
| HSL | hsl(221, 78%, 75%) |
| OKLCH | oklch(75.4% 0.103 265.5) |
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 #90AEF1 | 2.20:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #90AEF1 | 9.51:1 | AAA | Lc 60.5 | Content text, not long reading |
| #90AEF1 text on white | 2.20:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #90AEF1 text on black | 9.51:1 | AAA | Lc -58.8 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F2
oklch(88.5% 0.036 266.7)
-
Step 300
300
#ADC1EB
oklch(81% 0.064 265)
-
Step 400
400 (this color)
#90AEF1
oklch(75.4% 0.103 265.5)
-
Step 500
500
#6386D9
oklch(63.1% 0.132 265.5)
-
Step 600
600
#4A6EC6
oklch(55.6% 0.143 265.3)
-
Step 700
700
#3C5CAB
oklch(49.2% 0.132 265.3)
-
Step 800
800
#324B8B
oklch(42.7% 0.11 265.9)
-
Step 900
900
#2B3F6F
oklch(37.6% 0.086 265.4)
-
Step 950
950
#1A2541
oklch(27% 0.055 266.6)
#90AEF1 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) | #97B3F4 | 0.017 |
| Deuteranopia (no green cones) | #8DAAEF | 0.012 |
| Tritanopia (no blue cones) | #6FBCC5 | 0.093 |
| Achromatopsia (no color) | #AEAEAE | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90AEF1
#90AEF1
oklch(75.4% 0.103 265.5)
- #CDAA5F
#CDAA5F
oklch(75.4% 0.103 84.9)
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 #90AEF1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.028
- Pastel Blue #A2BFFE ΔE 0.053
- Periwinkle Blue #8F99FB ΔE 0.061
- Light Grey Blue #9DBCD4 ΔE 0.067
- Lightblue #7BC8F6 ΔE 0.069
- Light Cornflower Blue #98C1D9 ΔE 0.072
- Sky #82CAFC ΔE 0.072
- Cloudy Blue #ACC2D9 ΔE 0.082
Use #90AEF1 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.