#90ADD2
Closest named color: Cool Steel (#97A7B3). oklch(73.9% 0.063 254.7), rgb(144, 173, 210).
Aa
Black text reads best on this color (9.09:1).
About this color
#90ADD2 is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.063 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.043 away. Black text reads best on it, at 9.09:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.09:1 |
| White text | 2.30:1 |
Values
| HEX | #90ADD2 |
| RGB | rgb(144, 173, 210) |
| HSL | hsl(214, 42%, 69%) |
| OKLCH | oklch(73.9% 0.063 254.7) |
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 #90ADD2 | 2.30:1 | Fails | Lc -50.4 | Large or bold text, headings |
| Black text on #90ADD2 | 9.09:1 | AAA | Lc 58.5 | Large or bold text, headings |
| #90ADD2 text on white | 2.30:1 | Fails | Lc 45.5 | Large or bold text, headings |
| #90ADD2 text on black | 9.09:1 | AAA | Lc -56.6 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D0DAE8
oklch(88.5% 0.022 256.7)
-
Step 300
300
#B0C2DA
oklch(80.8% 0.039 255.6)
-
Step 400
400 (this color)
#90ADD2
oklch(73.9% 0.063 254.7)
-
Step 500
500
#688CB9
oklch(63.1% 0.079 254.4)
-
Step 600
600
#4F75A6
oklch(55.5% 0.088 255.2)
-
Step 700
700
#40628E
oklch(49% 0.081 255.3)
-
Step 800
800
#355073
oklch(42.6% 0.067 255.3)
-
Step 900
900
#2E435D
oklch(37.7% 0.052 254.2)
-
Step 950
950
#1B2736
oklch(26.9% 0.033 254.4)
#90ADD2 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) | #A0AED4 | 0.021 |
| Deuteranopia (no green cones) | #98A8D1 | 0.016 |
| Tritanopia (no blue cones) | #7CB5B9 | 0.055 |
| Achromatopsia (no color) | #ABABAB | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90ADD2
#90ADD2
oklch(73.9% 0.063 254.7)
- #C2A57E
#C2A57E
oklch(73.8% 0.063 74.8)
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 #90ADD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.043
- Light Grey Blue #9DBCD4 ΔE 0.046
- Bluegrey #85A3B2 ΔE 0.052
- Bluey Grey #89A0B0 ΔE 0.055
- Light Cornflower Blue #98C1D9 ΔE 0.055
- French Gray #ADB5BD ΔE 0.057
- Greyblue #77A1B5 ΔE 0.060
- Cool Grey #95A3A6 ΔE 0.062
Use #90ADD2 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.