#90ACEB
Closest named color: Carolina Blue (#8AB8FE). oklch(74.7% 0.097 265.7), rgb(144, 172, 235).
Aa
Black text reads best on this color (9.28:1).
About this color
#90ACEB is a medium-light, moderately saturated blue. In OKLCH its lightness is 75%, its chroma 0.097 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.036 away. Black text reads best on it, at 9.28:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 9.28:1 |
| White text | 2.26:1 |
Values
| HEX | #90ACEB |
| RGB | rgb(144, 172, 235) |
| HSL | hsl(222, 69%, 74%) |
| OKLCH | oklch(74.7% 0.097 265.7) |
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 #90ACEB | 2.26:1 | Fails | Lc -49.4 | Large or bold text, headings |
| Black text on #90ACEB | 9.28:1 | AAA | Lc 59.4 | Large or bold text, headings |
| #90ACEB text on white | 2.26:1 | Fails | Lc 44.5 | Non-text elements, placeholder text |
| #90ACEB text on black | 9.28:1 | AAA | Lc -57.6 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CFD9F0
oklch(88.5% 0.033 266.9)
-
Step 300
300
#AEC1E9
oklch(81% 0.06 265.1)
-
Step 400
400 (this color)
#90ACEB
oklch(74.7% 0.097 265.7)
-
Step 500
500
#6686D4
oklch(63% 0.124 266.1)
-
Step 600
600
#4D6FC1
oklch(55.6% 0.133 265.4)
-
Step 700
700
#3E5CA7
oklch(49% 0.125 265.6)
-
Step 800
800
#344C87
oklch(42.8% 0.102 265.6)
-
Step 900
900
#2D3F6C
oklch(37.6% 0.081 266.2)
-
Step 950
950
#1A253F
oklch(26.8% 0.051 265.7)
#90ACEB 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) | #96B1EE | 0.016 |
| Deuteranopia (no green cones) | #8DA9EA | 0.009 |
| Tritanopia (no blue cones) | #73B9C2 | 0.086 |
| Achromatopsia (no color) | #ACACAC | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90ACEB
#90ACEB
oklch(74.7% 0.097 265.7)
- #C9A963
#C9A963
oklch(74.8% 0.097 85.5)
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 #90ACEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.036
- Pastel Blue #A2BFFE ΔE 0.059
- Periwinkle Blue #8F99FB ΔE 0.060
- Light Grey Blue #9DBCD4 ΔE 0.065
- Light Cornflower Blue #98C1D9 ΔE 0.071
- Lightblue #7BC8F6 ΔE 0.073
- Sky #82CAFC ΔE 0.077
- Cool Steel #97A7B3 ΔE 0.080
Use #90ACEB 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.