#91ADD0
Closest named color: Cool Steel (#97A7B3). oklch(73.9% 0.06 254.2), rgb(145, 173, 208).
Aa
Black text reads best on this color (9.09:1).
About this color
#91ADD0 is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.060 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.041 away. Black text reads best on it, at 9.09:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.09:1 |
| White text | 2.30:1 |
Values
| HEX | #91ADD0 |
| RGB | rgb(145, 173, 208) |
| HSL | hsl(213, 40%, 69%) |
| OKLCH | oklch(73.9% 0.06 254.2) |
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 #91ADD0 | 2.30:1 | Fails | Lc -50.4 | Large or bold text, headings |
| Black text on #91ADD0 | 9.09:1 | AAA | Lc 58.4 | Large or bold text, headings |
| #91ADD0 text on white | 2.30:1 | Fails | Lc 45.5 | Large or bold text, headings |
| #91ADD0 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
#D0DAE7
oklch(88.5% 0.021 254.9)
-
Step 300
300
#B1C2D9
oklch(80.8% 0.038 256)
-
Step 400
400 (this color)
#91ADD0
oklch(73.9% 0.06 254.2)
-
Step 500
500
#698CB7
oklch(63.1% 0.076 254)
-
Step 600
600
#5176A3
oklch(55.7% 0.082 253.9)
-
Step 700
700
#41638C
oklch(49.2% 0.077 253.8)
-
Step 800
800
#365171
oklch(42.8% 0.063 253.3)
-
Step 900
900
#2F435C
oklch(37.7% 0.05 254.4)
-
Step 950
950
#1C2736
oklch(27% 0.032 256.3)
#91ADD0 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) | #A0AED2 | 0.020 |
| Deuteranopia (no green cones) | #99A8CF | 0.016 |
| Tritanopia (no blue cones) | #7FB5B8 | 0.053 |
| Achromatopsia (no color) | #ABABAB | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91ADD0
#91ADD0
oklch(73.9% 0.06 254.2)
- #C1A581
#C1A581
oklch(73.8% 0.059 73.7)
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 #91ADD0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.041
- Light Grey Blue #9DBCD4 ΔE 0.045
- Bluegrey #85A3B2 ΔE 0.050
- Bluey Grey #89A0B0 ΔE 0.053
- French Gray #ADB5BD ΔE 0.054
- Light Cornflower Blue #98C1D9 ΔE 0.055
- Greyblue #77A1B5 ΔE 0.059
- Cool Grey #95A3A6 ΔE 0.059
Use #91ADD0 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.