#90A4EC
Closest named color: Periwinkle Blue (#8F99FB). oklch(73.1% 0.107 271.7), rgb(144, 164, 236).
Aa
Black text reads best on this color (8.70:1).
About this color
#90A4EC is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.107 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.040 away. Black text reads best on it, at 8.70:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.70:1 |
| White text | 2.41:1 |
Values
| HEX | #90A4EC |
| RGB | rgb(144, 164, 236) |
| HSL | hsl(227, 71%, 75%) |
| OKLCH | oklch(73.1% 0.107 271.7) |
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 #90A4EC | 2.41:1 | Fails | Lc -52.4 | Large or bold text, headings |
| Black text on #90A4EC | 8.70:1 | AAA | Lc 56.6 | Large or bold text, headings |
| #90A4EC text on white | 2.41:1 | Fails | Lc 47.4 | Large or bold text, headings |
| #90A4EC text on black | 8.70:1 | AAA | Lc -54.6 | 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
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B1BFED
oklch(81% 0.067 271.6)
-
Step 400
400 (this color)
#90A4EC
oklch(73.1% 0.107 271.7)
-
Step 500
500
#6C82DC
oklch(63% 0.138 271.6)
-
Step 600
600
#556AC9
oklch(55.6% 0.148 271.4)
-
Step 700
700
#4658AE
oklch(49.1% 0.138 271.6)
-
Step 800
800
#39488D
oklch(42.6% 0.115 271.5)
-
Step 900
900
#313D71
oklch(37.7% 0.09 271.7)
-
Step 950
950
#1D2442
oklch(27% 0.057 272.2)
#90A4EC 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) | #8CABEF | 0.018 |
| Deuteranopia (no green cones) | #84A3EA | 0.016 |
| Tritanopia (no blue cones) | #73B2BE | 0.095 |
| Achromatopsia (no color) | #A7A7A7 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90A4EC
#90A4EC
oklch(73.1% 0.107 271.7)
- #C1A653
#C1A653
oklch(73.2% 0.108 91.6)
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 #90A4EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.040
- Carolina Blue #8AB8FE ΔE 0.052
- Perrywinkle #8F8CE7 ΔE 0.062
- Cornflower Blue #6495ED ΔE 0.070
- Pale Purple #B790D4 ΔE 0.072
- Pastel Blue #A2BFFE ΔE 0.077
- Lavender Blue #8B88F8 ΔE 0.079
- Light Grey Blue #9DBCD4 ΔE 0.085
Use #90A4EC 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.