#90A4E7
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.9% 0.1 271), rgb(144, 164, 231).
Aa
Black text reads best on this color (8.64:1).
About this color
#90A4E7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 73%, its chroma 0.100 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.046 away. Black text reads best on it, at 8.64:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.64:1 |
| White text | 2.42:1 |
Values
| HEX | #90A4E7 |
| RGB | rgb(144, 164, 231) |
| HSL | hsl(226, 64%, 74%) |
| OKLCH | oklch(72.9% 0.1 271) |
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 #90A4E7 | 2.42:1 | Fails | Lc -52.7 | Large or bold text, headings |
| Black text on #90A4E7 | 8.64:1 | AAA | Lc 56.3 | Large or bold text, headings |
| #90A4E7 text on white | 2.42:1 | Fails | Lc 47.7 | Large or bold text, headings |
| #90A4E7 text on black | 8.64:1 | AAA | Lc -54.3 | 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
#E5E9F6
oklch(93.5% 0.018 272.3)
-
Step 200
200
#D0D8F1
oklch(88.4% 0.035 271.5)
-
Step 300
300
#B1BFEA
oklch(80.8% 0.063 270.8)
-
Step 400
400 (this color)
#90A4E7
oklch(72.9% 0.1 271)
-
Step 500
500
#6D83D7
oklch(63% 0.129 271.2)
-
Step 600
600
#566BC4
oklch(55.5% 0.14 271.2)
-
Step 700
700
#4659A9
oklch(49% 0.129 270.9)
-
Step 800
800
#3A4989
oklch(42.6% 0.107 271.3)
-
Step 900
900
#313E6E
oklch(37.7% 0.084 270.5)
-
Step 950
950
#1D2440
oklch(26.9% 0.053 271.8)
#90A4E7 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) | #8EAAEA | 0.015 |
| Deuteranopia (no green cones) | #86A3E5 | 0.014 |
| Tritanopia (no blue cones) | #75B1BC | 0.089 |
| Achromatopsia (no color) | #A6A6A6 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90A4E7
#90A4E7
oklch(72.9% 0.1 271)
- #BFA559
#BFA559
oklch(72.9% 0.101 90.9)
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 #90A4E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.046
- Carolina Blue #8AB8FE ΔE 0.055
- Perrywinkle #8F8CE7 ΔE 0.063
- Pale Purple #B790D4 ΔE 0.071
- Cornflower Blue #6495ED ΔE 0.071
- Pastel Blue #A2BFFE ΔE 0.078
- Cool Steel #97A7B3 ΔE 0.080
- Light Grey Blue #9DBCD4 ΔE 0.081
Use #90A4E7 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.