#90A8CA
Closest named color: Cool Steel (#97A7B3). oklch(72.5% 0.056 257.1), rgb(144, 168, 202).
Aa
Black text reads best on this color (8.63:1).
About this color
#90A8CA is a medium-light, muted blue. In OKLCH its lightness is 73%, its chroma 0.056 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.034 away. Black text reads best on it, at 8.63:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 8.63:1 |
| White text | 2.43:1 |
Values
| HEX | #90A8CA |
| RGB | rgb(144, 168, 202) |
| HSL | hsl(215, 35%, 68%) |
| OKLCH | oklch(72.5% 0.056 257.1) |
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 #90A8CA | 2.43:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #90A8CA | 8.63:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #90A8CA text on white | 2.43:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #90A8CA text on black | 8.63:1 | AAA | Lc -54.2 | 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
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE6
oklch(88.5% 0.019 255.5)
-
Step 300
300
#B3C2D8
oklch(81% 0.035 257.9)
-
Step 400
400 (this color)
#90A8CA
oklch(72.5% 0.056 257.1)
-
Step 500
500
#6E8BB5
oklch(63.1% 0.072 257.6)
-
Step 600
600
#5575A1
oklch(55.6% 0.078 256.5)
-
Step 700
700
#46628A
oklch(49.2% 0.073 257.3)
-
Step 800
800
#395070
oklch(42.7% 0.061 256.8)
-
Step 900
900
#31425B
oklch(37.6% 0.048 257.9)
-
Step 950
950
#1D2735
oklch(27% 0.03 256.9)
#90A8CA 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) | #9CA9CC | 0.017 |
| Deuteranopia (no green cones) | #96A4C9 | 0.012 |
| Tritanopia (no blue cones) | #80AFB3 | 0.049 |
| Achromatopsia (no color) | #A6A6A6 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90A8CA
#90A8CA
oklch(72.5% 0.056 257.1)
- #BAA27F
#BAA27F
oklch(72.4% 0.056 77)
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 #90A8CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.034
- Bluegrey #85A3B2 ΔE 0.039
- Bluey Grey #89A0B0 ΔE 0.041
- Greyblue #77A1B5 ΔE 0.048
- Cool Gray #8D99AE ΔE 0.050
- Cool Grey #95A3A6 ΔE 0.050
- Dark Gray #A9A9A9 ΔE 0.057
- Light Grey Blue #9DBCD4 ΔE 0.057
Use #90A8CA 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.