#90A5DA
Closest named color: Cool Steel (#97A7B3). oklch(72.5% 0.081 267.6), rgb(144, 165, 218).
Aa
Black text reads best on this color (8.58:1).
About this color
#90A5DA is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.081 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.060 away. Black text reads best on it, at 8.58:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.58:1 |
| White text | 2.44:1 |
Values
| HEX | #90A5DA |
| RGB | rgb(144, 165, 218) |
| HSL | hsl(223, 50%, 71%) |
| OKLCH | oklch(72.5% 0.081 267.6) |
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 #90A5DA | 2.44:1 | Fails | Lc -53.1 | Large or bold text, headings |
| Black text on #90A5DA | 8.58:1 | AAA | Lc 55.9 | Large or bold text, headings |
| #90A5DA text on white | 2.44:1 | Fails | Lc 48.1 | Large or bold text, headings |
| #90A5DA text on black | 8.58:1 | AAA | Lc -53.9 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B2C0E2
oklch(80.8% 0.051 267.6)
-
Step 400
400 (this color)
#90A5DA
oklch(72.5% 0.081 267.6)
-
Step 500
500
#6E87C8
oklch(63.1% 0.103 267.4)
-
Step 600
600
#5670B5
oklch(55.7% 0.112 267.1)
-
Step 700
700
#475D9C
oklch(49.1% 0.105 267.9)
-
Step 800
800
#3A4C7E
oklch(42.6% 0.086 267.7)
-
Step 900
900
#324066
oklch(37.8% 0.068 267.7)
-
Step 950
950
#1D263B
oklch(27.1% 0.041 266)
#90A5DA 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) | #94A9DC | 0.012 |
| Deuteranopia (no green cones) | #8DA3D9 | 0.007 |
| Tritanopia (no blue cones) | #7AB0B7 | 0.074 |
| Achromatopsia (no color) | #A6A6A6 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90A5DA
#90A5DA
oklch(72.5% 0.081 267.6)
- #BCA46A
#BCA46A
oklch(72.6% 0.081 87.9)
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 #90A5DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.060
- Bluegrey #85A3B2 ΔE 0.062
- Bluey Grey #89A0B0 ΔE 0.062
- Carolina Blue #8AB8FE ΔE 0.062
- Periwinkle Blue #8F99FB ΔE 0.065
- Greyblue #77A1B5 ΔE 0.065
- Cool Gray #8D99AE ΔE 0.065
- Light Grey Blue #9DBCD4 ΔE 0.070
Use #90A5DA 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.