#90A5FB
Closest named color: Periwinkle Blue (#8F99FB). oklch(74.1% 0.127 272.5), rgb(144, 165, 251).
Aa
Black text reads best on this color (8.96:1).
About this color
#90A5FB is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.127 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.031 away. Black text reads best on it, at 8.96:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.96:1 |
| White text | 2.34:1 |
Values
| HEX | #90A5FB |
| RGB | rgb(144, 165, 251) |
| HSL | hsl(228, 93%, 77%) |
| OKLCH | oklch(74.1% 0.127 272.5) |
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 #90A5FB | 2.34:1 | Fails | Lc -51.0 | Large or bold text, headings |
| Black text on #90A5FB | 8.96:1 | AAA | Lc 57.9 | Large or bold text, headings |
| #90A5FB text on white | 2.34:1 | Fails | Lc 46.1 | Large or bold text, headings |
| #90A5FB text on black | 8.96:1 | AAA | Lc -55.9 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F7
oklch(88.5% 0.044 272.7)
-
Step 300
300
#AFBEF5
oklch(80.9% 0.08 272.7)
-
Step 400
400 (this color)
#90A5FB
oklch(74.1% 0.127 272.5)
-
Step 500
500
#6A7FEA
oklch(63.1% 0.161 272.6)
-
Step 600
600
#5365D8
oklch(55.5% 0.176 272.6)
-
Step 700
700
#4453BC
oklch(49% 0.165 272.7)
-
Step 800
800
#384598
oklch(42.8% 0.136 272.6)
-
Step 900
900
#303B79
oklch(37.8% 0.106 272.8)
-
Step 950
950
#1C2347
oklch(27.1% 0.067 272.9)
#90A5FB 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) | #87AEFF | 0.024 |
| Deuteranopia (no green cones) | #7DA5F9 | 0.023 |
| Tritanopia (no blue cones) | #6CB7C4 | 0.114 |
| Achromatopsia (no color) | #A9A9A9 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90A5FB
#90A5FB
oklch(74.1% 0.127 272.5)
- #C7A83F
#C7A83F
oklch(74% 0.127 92.4)
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 #90A5FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.031
- Carolina Blue #8AB8FE ΔE 0.049
- Perrywinkle #8F8CE7 ΔE 0.065
- Cornflower Blue #6495ED ΔE 0.073
- Pastel Blue #A2BFFE ΔE 0.074
- Lavender Blue #8B88F8 ΔE 0.074
- Pastel Purple #CAA0FF ΔE 0.082
- Pale Purple #B790D4 ΔE 0.082
Use #90A5FB 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.