#90ACDB
Closest named color: Light Grey Blue (#9DBCD4). oklch(74% 0.075 260.6), rgb(144, 172, 219).
Aa
Black text reads best on this color (9.10:1).
About this color
#90ACDB is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.075 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.052 away. Black text reads best on it, at 9.10:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.10:1 |
| White text | 2.30:1 |
Values
| HEX | #90ACDB |
| RGB | rgb(144, 172, 219) |
| HSL | hsl(218, 51%, 71%) |
| OKLCH | oklch(74% 0.075 260.6) |
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 #90ACDB | 2.30:1 | Fails | Lc -50.3 | Large or bold text, headings |
| Black text on #90ACDB | 9.10:1 | AAA | Lc 58.5 | Large or bold text, headings |
| #90ACDB text on white | 2.30:1 | Fails | Lc 45.4 | Large or bold text, headings |
| #90ACDB text on black | 9.10:1 | AAA | Lc -56.7 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#B0C2E0
oklch(81% 0.047 260.7)
-
Step 400
400 (this color)
#90ACDB
oklch(74% 0.075 260.6)
-
Step 500
500
#688AC4
oklch(63.2% 0.096 260.7)
-
Step 600
600
#4F73B0
oklch(55.6% 0.104 260.5)
-
Step 700
700
#406097
oklch(49.1% 0.096 260.7)
-
Step 800
800
#354F7B
oklch(42.8% 0.08 260.4)
-
Step 900
900
#2E4263
oklch(37.8% 0.062 260.1)
-
Step 950
950
#1B273A
oklch(27.1% 0.039 259.4)
#90ACDB 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) | #9CAFDD | 0.018 |
| Deuteranopia (no green cones) | #94A8DA | 0.011 |
| Tritanopia (no blue cones) | #79B6BC | 0.067 |
| Achromatopsia (no color) | #ABABAB | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90ACDB
#90ACDB
oklch(74% 0.075 260.6)
- #C4A674
#C4A674
oklch(74% 0.075 79.9)
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 #90ACDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.052
- Carolina Blue #8AB8FE ΔE 0.052
- Cool Steel #97A7B3 ΔE 0.056
- Light Cornflower Blue #98C1D9 ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.063
- Bluey Grey #89A0B0 ΔE 0.065
- French Gray #ADB5BD ΔE 0.068
- Greyblue #77A1B5 ΔE 0.068
Use #90ACDB 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.