#91BBD4
Closest named color: Light Grey Blue (#9DBCD4). oklch(77% 0.057 234.6), rgb(145, 187, 212).
Aa
Black text reads best on this color (10.26:1).
About this color
#91BBD4 is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.057 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.015 away. Black text reads best on it, at 10.26:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.26:1 |
| White text | 2.04:1 |
Values
| HEX | #91BBD4 |
| RGB | rgb(145, 187, 212) |
| HSL | hsl(202, 44%, 70%) |
| OKLCH | oklch(77% 0.057 234.6) |
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 #91BBD4 | 2.04:1 | Fails | Lc -44.4 | Non-text elements, placeholder text |
| Black text on #91BBD4 | 10.26:1 | AAA | Lc 64.1 | Content text, not long reading |
| #91BBD4 text on white | 2.04:1 | Fails | Lc 39.8 | Non-text elements, placeholder text |
| #91BBD4 text on black | 10.26:1 | AAA | Lc -62.5 | 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
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300 (this color)
#91BBD4
oklch(77% 0.057 234.6)
-
Step 400
400
#63AAD2
oklch(70.7% 0.092 234.8)
-
Step 500
500
#2D94C6
oklch(63.1% 0.118 234.7)
-
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
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#064764
oklch(37.6% 0.077 235.1)
-
Step 950
950
#092A3B
oklch(27.1% 0.049 235.4)
#91BBD4 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) | #AFBAD5 | 0.037 |
| Deuteranopia (no green cones) | #A6B2D4 | 0.034 |
| Tritanopia (no blue cones) | #7BC2C3 | 0.044 |
| Achromatopsia (no color) | #B5B5B5 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BBD4
#91BBD4
oklch(77% 0.057 234.6)
- #D2AB92
#D2AB92
oklch(77% 0.057 54.3)
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 #91BBD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.015
- Light Cornflower Blue #98C1D9 ΔE 0.019
- Cloudy Blue #ACC2D9 ΔE 0.040
- French Gray #ADB5BD ΔE 0.043
- Light Steel Blue #B0C4DE ΔE 0.049
- Sky Blue #87CEEB ΔE 0.052
- Lightblue #7BC8F6 ΔE 0.052
- Sky #82CAFC ΔE 0.060
Use #91BBD4 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.