#90ADDB
Closest named color: Light Grey Blue (#9DBCD4). oklch(74.3% 0.074 259.5), rgb(144, 173, 219).
Aa
Black text reads best on this color (9.18:1).
About this color
#90ADDB is a medium-light, moderately saturated blue. In OKLCH its lightness is 74%, its chroma 0.074 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.050 away. Black text reads best on it, at 9.18:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.18:1 |
| White text | 2.28:1 |
Values
| HEX | #90ADDB |
| RGB | rgb(144, 173, 219) |
| HSL | hsl(217, 51%, 71%) |
| OKLCH | oklch(74.3% 0.074 259.5) |
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 #90ADDB | 2.28:1 | Fails | Lc -49.9 | Large or bold text, headings |
| Black text on #90ADDB | 9.18:1 | AAA | Lc 58.9 | Large or bold text, headings |
| #90ADDB text on white | 2.28:1 | Fails | Lc 45.0 | Large or bold text, headings |
| #90ADDB text on black | 9.18:1 | AAA | Lc -57.1 | 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
#AFC2DF
oklch(80.9% 0.046 258.8)
-
Step 400
400 (this color)
#90ADDB
oklch(74.3% 0.074 259.5)
-
Step 500
500
#678AC3
oklch(63.1% 0.095 259.9)
-
Step 600
600
#4E73AF
oklch(55.5% 0.103 259.7)
-
Step 700
700
#3F6197
oklch(49.2% 0.096 259.3)
-
Step 800
800
#344F7A
oklch(42.7% 0.079 259.4)
-
Step 900
900
#2D4262
oklch(37.7% 0.061 258.6)
-
Step 950
950
#1B273A
oklch(27.1% 0.039 259.4)
#90ADDB 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) | #9DAFDD | 0.018 |
| Deuteranopia (no green cones) | #95A8DA | 0.014 |
| Tritanopia (no blue cones) | #79B7BC | 0.067 |
| Achromatopsia (no color) | #ABABAB | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90ADDB
#90ADDB
oklch(74.3% 0.074 259.5)
- #C5A776
#C5A776
oklch(74.3% 0.074 79.5)
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 #90ADDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.050
- Carolina Blue #8AB8FE ΔE 0.051
- Cool Steel #97A7B3 ΔE 0.056
- Light Cornflower Blue #98C1D9 ΔE 0.058
- Bluegrey #85A3B2 ΔE 0.063
- Bluey Grey #89A0B0 ΔE 0.066
- French Gray #ADB5BD ΔE 0.066
- Pastel Blue #A2BFFE ΔE 0.068
Use #90ADDB 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.