#90A4DC
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.4% 0.085 269.1), rgb(144, 164, 220).
Aa
Black text reads best on this color (8.52:1).
About this color
#90A4DC is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.085 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.060 away. Black text reads best on it, at 8.52:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.52:1 |
| White text | 2.46:1 |
Values
| HEX | #90A4DC |
| RGB | rgb(144, 164, 220) |
| HSL | hsl(224, 52%, 71%) |
| OKLCH | oklch(72.4% 0.085 269.1) |
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 #90A4DC | 2.46:1 | Fails | Lc -53.4 | Large or bold text, headings |
| Black text on #90A4DC | 8.52:1 | AAA | Lc 55.6 | Large or bold text, headings |
| #90A4DC text on white | 2.46:1 | Fails | Lc 48.4 | Large or bold text, headings |
| #90A4DC text on black | 8.52:1 | AAA | Lc -53.6 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9ED
oklch(88.5% 0.029 268.3)
-
Step 300
300
#B2C0E4
oklch(80.9% 0.053 268.5)
-
Step 400
400 (this color)
#90A4DC
oklch(72.4% 0.085 269.1)
-
Step 500
500
#6F86CB
oklch(63.1% 0.108 269.2)
-
Step 600
600
#576FB8
oklch(55.7% 0.117 268.7)
-
Step 700
700
#475C9F
oklch(49.1% 0.11 269)
-
Step 800
800
#3B4C81
oklch(42.9% 0.091 268.9)
-
Step 900
900
#323F67
oklch(37.6% 0.071 269.2)
-
Step 950
950
#1D253C
oklch(26.9% 0.045 268.7)
#90A4DC 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) | #92A9DE | 0.014 |
| Deuteranopia (no green cones) | #8BA2DB | 0.009 |
| Tritanopia (no blue cones) | #7AAFB7 | 0.076 |
| Achromatopsia (no color) | #A5A5A5 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90A4DC
#90A4DC
oklch(72.4% 0.085 269.1)
- #BBA466
#BBA466
oklch(72.5% 0.085 89.8)
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 #90A4DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.060
- Carolina Blue #8AB8FE ΔE 0.062
- Cool Steel #97A7B3 ΔE 0.064
- Bluegrey #85A3B2 ΔE 0.065
- Bluey Grey #89A0B0 ΔE 0.065
- Cool Gray #8D99AE ΔE 0.068
- Greyblue #77A1B5 ΔE 0.068
- Perrywinkle #8F8CE7 ΔE 0.070
Use #90A4DC 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.