#91B8CF
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.2% 0.053 234.3), rgb(145, 184, 207).
Aa
Black text reads best on this color (9.96:1).
About this color
#91B8CF is a medium-light, muted blue. In OKLCH its lightness is 76%, its chroma 0.053 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.020 away. Black text reads best on it, at 9.96:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.96:1 |
| White text | 2.10:1 |
Values
| HEX | #91B8CF |
| RGB | rgb(145, 184, 207) |
| HSL | hsl(202, 39%, 69%) |
| OKLCH | oklch(76.2% 0.053 234.3) |
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 #91B8CF | 2.10:1 | Fails | Lc -45.9 | Large or bold text, headings |
| Black text on #91B8CF | 9.96:1 | AAA | Lc 62.7 | Content text, not long reading |
| #91B8CF text on white | 2.10:1 | Fails | Lc 41.3 | Non-text elements, placeholder text |
| #91B8CF text on black | 9.96:1 | AAA | Lc -61.0 | Content text, not long reading |
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 300.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300 (this color)
#91B8CF
oklch(76.2% 0.053 234.3)
-
Step 400
400
#68AACE
oklch(70.8% 0.086 233.7)
-
Step 500
500
#3894C1
oklch(63.2% 0.109 233.7)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#0F4762
oklch(37.7% 0.072 235)
-
Step 950
950
#0C2A39
oklch(27% 0.045 233.7)
#91B8CF 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) | #ADB7D0 | 0.035 |
| Deuteranopia (no green cones) | #A5AFCF | 0.033 |
| Tritanopia (no blue cones) | #7EBEBF | 0.040 |
| Achromatopsia (no color) | #B3B3B3 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B8CF
#91B8CF
oklch(76.2% 0.053 234.3)
- #CEA992
#CEA992
oklch(76.2% 0.054 53.6)
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 #91B8CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.020
- Light Cornflower Blue #98C1D9 ΔE 0.028
- French Gray #ADB5BD ΔE 0.040
- Cloudy Blue #ACC2D9 ΔE 0.046
- Cool Steel #97A7B3 ΔE 0.051
- Light Steel Blue #B0C4DE ΔE 0.055
- Dark Gray #A9A9A9 ΔE 0.060
- Lightblue #7BC8F6 ΔE 0.061
Use #91B8CF 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.