#90AFCD
Closest named color: Cool Steel (#97A7B3). oklch(74.1% 0.055 247.7), rgb(144, 175, 205).
Aa
Black text reads best on this color (9.19:1).
About this color
#90AFCD is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.055 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.037 away. Black text reads best on it, at 9.19:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.19:1 |
| White text | 2.28:1 |
Values
| HEX | #90AFCD |
| RGB | rgb(144, 175, 205) |
| HSL | hsl(210, 38%, 68%) |
| OKLCH | oklch(74.1% 0.055 247.7) |
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 #90AFCD | 2.28:1 | Fails | Lc -49.9 | Large or bold text, headings |
| Black text on #90AFCD | 9.19:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #90AFCD text on white | 2.28:1 | Fails | Lc 45.0 | Non-text elements, placeholder text |
| #90AFCD text on black | 9.19:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#D0DBE5
oklch(88.6% 0.018 245.4)
-
Step 300
300
#B0C3D6
oklch(80.9% 0.034 248.2)
-
Step 400
400 (this color)
#90AFCD
oklch(74.1% 0.055 247.7)
-
Step 500
500
#678EB3
oklch(63.2% 0.071 247.7)
-
Step 600
600
#4E779E
oklch(55.5% 0.076 248.2)
-
Step 700
700
#3E6487
oklch(49% 0.071 247.5)
-
Step 800
800
#34526E
oklch(42.8% 0.059 247.7)
-
Step 900
900
#2D4459
oklch(37.7% 0.046 246.9)
-
Step 950
950
#1B2834
oklch(27.1% 0.029 246.9)
#90AFCD 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) | #A3AFCE | 0.025 |
| Deuteranopia (no green cones) | #9CA9CC | 0.021 |
| Tritanopia (no blue cones) | #7EB6B9 | 0.046 |
| Achromatopsia (no color) | #ACACAC | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90AFCD
#90AFCD
oklch(74.1% 0.055 247.7)
- #C3A586
#C3A586
oklch(74.1% 0.055 67.7)
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 #90AFCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.037
- Light Grey Blue #9DBCD4 ΔE 0.040
- Bluegrey #85A3B2 ΔE 0.048
- French Gray #ADB5BD ΔE 0.049
- Light Cornflower Blue #98C1D9 ΔE 0.050
- Bluey Grey #89A0B0 ΔE 0.053
- Dark Gray #A9A9A9 ΔE 0.056
- Cool Grey #95A3A6 ΔE 0.056
Use #90AFCD 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.