#90A4E6
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.9% 0.099 270.9), rgb(144, 164, 230).
Aa
Black text reads best on this color (8.63:1).
About this color
#90A4E6 is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.099 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.047 away. Black text reads best on it, at 8.63:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.63:1 |
| White text | 2.43:1 |
Values
| HEX | #90A4E6 |
| RGB | rgb(144, 164, 230) |
| HSL | hsl(226, 63%, 73%) |
| OKLCH | oklch(72.9% 0.099 270.9) |
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 #90A4E6 | 2.43:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #90A4E6 | 8.63:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #90A4E6 text on white | 2.43:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #90A4E6 text on black | 8.63:1 | AAA | Lc -54.2 | 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
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D8F1
oklch(88.4% 0.035 271.5)
-
Step 300
300
#B1BFE9
oklch(80.8% 0.061 270.5)
-
Step 400
400 (this color)
#90A4E6
oklch(72.9% 0.099 270.9)
-
Step 500
500
#6D84D6
oklch(63.2% 0.126 270.6)
-
Step 600
600
#566CC3
oklch(55.6% 0.137 270.7)
-
Step 700
700
#4659A8
oklch(48.9% 0.128 270.9)
-
Step 800
800
#3A4988
oklch(42.6% 0.106 271.2)
-
Step 900
900
#313E6D
oklch(37.7% 0.082 270.4)
-
Step 950
950
#1D2540
oklch(27.1% 0.052 270.2)
#90A4E6 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) | #8EAAE9 | 0.015 |
| Deuteranopia (no green cones) | #87A3E4 | 0.012 |
| Tritanopia (no blue cones) | #76B1BB | 0.089 |
| Achromatopsia (no color) | #A6A6A6 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90A4E6
#90A4E6
oklch(72.9% 0.099 270.9)
- #BFA55B
#BFA55B
oklch(72.9% 0.099 90.5)
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 #90A4E6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.047
- Carolina Blue #8AB8FE ΔE 0.055
- Perrywinkle #8F8CE7 ΔE 0.064
- Pale Purple #B790D4 ΔE 0.070
- Cornflower Blue #6495ED ΔE 0.071
- Pastel Blue #A2BFFE ΔE 0.078
- Cool Steel #97A7B3 ΔE 0.079
- Bluegrey #85A3B2 ΔE 0.080
Use #90A4E6 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.