#90A3EE
Closest named color: Periwinkle Blue (#8F99FB). oklch(73% 0.111 272.5), rgb(144, 163, 238).
Aa
Black text reads best on this color (8.65:1).
About this color
#90A3EE is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.111 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.036 away. Black text reads best on it, at 8.65:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.65:1 |
| White text | 2.42:1 |
Values
| HEX | #90A3EE |
| RGB | rgb(144, 163, 238) |
| HSL | hsl(228, 73%, 75%) |
| OKLCH | oklch(73% 0.111 272.5) |
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 #90A3EE | 2.42:1 | Fails | Lc -52.7 | Large or bold text, headings |
| Black text on #90A3EE | 8.65:1 | AAA | Lc 56.3 | Large or bold text, headings |
| #90A3EE text on white | 2.42:1 | Fails | Lc 47.7 | Large or bold text, headings |
| #90A3EE text on black | 8.65:1 | AAA | Lc -54.3 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B1BEEE
oklch(80.8% 0.07 272.9)
-
Step 400
400 (this color)
#90A3EE
oklch(73% 0.111 272.5)
-
Step 500
500
#6D81DF
oklch(63.1% 0.143 272.6)
-
Step 600
600
#5669CC
oklch(55.6% 0.154 272.3)
-
Step 700
700
#4757B1
oklch(49.2% 0.143 272.5)
-
Step 800
800
#3A478F
oklch(42.6% 0.119 272.7)
-
Step 900
900
#313C72
oklch(37.6% 0.093 272.5)
-
Step 950
950
#1D2443
oklch(27.1% 0.058 272.4)
#90A3EE 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) | #8AABF1 | 0.021 |
| Deuteranopia (no green cones) | #82A3EC | 0.018 |
| Tritanopia (no blue cones) | #72B2BE | 0.099 |
| Achromatopsia (no color) | #A6A6A6 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90A3EE
#90A3EE
oklch(73% 0.111 272.5)
- #C0A64F
#C0A64F
oklch(73.1% 0.111 92.8)
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 #90A3EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.036
- Carolina Blue #8AB8FE ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.068
- Pale Purple #B790D4 ΔE 0.072
- Lavender Blue #8B88F8 ΔE 0.075
- Pastel Blue #A2BFFE ΔE 0.079
- Baby Purple #CA9BF7 ΔE 0.085
Use #90A3EE 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.