#91B4D2
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.5% 0.058 244.5), rgb(145, 180, 210).
Aa
Black text reads best on this color (9.66:1).
About this color
#91B4D2 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.058 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.028 away. Black text reads best on it, at 9.66:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.66:1 |
| White text | 2.17:1 |
Values
| HEX | #91B4D2 |
| RGB | rgb(145, 180, 210) |
| HSL | hsl(208, 42%, 70%) |
| OKLCH | oklch(75.5% 0.058 244.5) |
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 #91B4D2 | 2.17:1 | Fails | Lc -47.4 | Large or bold text, headings |
| Black text on #91B4D2 | 9.66:1 | AAA | Lc 61.2 | Content text, not long reading |
| #91B4D2 text on white | 2.17:1 | Fails | Lc 42.7 | Non-text elements, placeholder text |
| #91B4D2 text on black | 9.66:1 | AAA | Lc -59.5 | 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
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AEC4D7
oklch(81% 0.036 244.3)
-
Step 400
400 (this color)
#91B4D2
oklch(75.5% 0.058 244.5)
-
Step 500
500
#628FB3
oklch(63.2% 0.073 243.4)
-
Step 600
600
#49789F
oklch(55.6% 0.08 245)
-
Step 700
700
#3A6588
oklch(49.1% 0.074 244.7)
-
Step 800
800
#30536F
oklch(42.8% 0.062 244.1)
-
Step 900
900
#2B4459
oklch(37.6% 0.048 244.9)
-
Step 950
950
#192834
oklch(26.9% 0.03 243.3)
#91B4D2 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) | #A8B4D4 | 0.030 |
| Deuteranopia (no green cones) | #A0ADD1 | 0.025 |
| Tritanopia (no blue cones) | #7DBBBE | 0.047 |
| Achromatopsia (no color) | #B0B0B0 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B4D2
#91B4D2
oklch(75.5% 0.058 244.5)
- #CAA889
#CAA889
oklch(75.4% 0.058 64.1)
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 #91B4D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.028
- Light Cornflower Blue #98C1D9 ΔE 0.037
- French Gray #ADB5BD ΔE 0.046
- Cool Steel #97A7B3 ΔE 0.048
- Cloudy Blue #ACC2D9 ΔE 0.053
- Bluegrey #85A3B2 ΔE 0.061
- Dark Gray #A9A9A9 ΔE 0.061
- Light Steel Blue #B0C4DE ΔE 0.062
Use #91B4D2 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.