#91BCD4
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.3% 0.057 232.9), rgb(145, 188, 212).
Aa
Black text reads best on this color (10.34:1).
About this color
#91BCD4 is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.057 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.014 away. Black text reads best on it, at 10.34:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.34:1 |
| White text | 2.02:1 |
Values
| HEX | #91BCD4 |
| RGB | rgb(145, 188, 212) |
| HSL | hsl(201, 44%, 70%) |
| OKLCH | oklch(77.3% 0.057 232.9) |
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 #91BCD4 | 2.02:1 | Fails | Lc -43.9 | Non-text elements, placeholder text |
| Black text on #91BCD4 | 10.34:1 | AAA | Lc 64.5 | Content text, not long reading |
| #91BCD4 text on white | 2.02:1 | Fails | Lc 39.4 | Non-text elements, placeholder text |
| #91BCD4 text on black | 10.34:1 | AAA | Lc -62.9 | 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
#C5DDEB
oklch(88.4% 0.032 233.3)
-
Step 300
300 (this color)
#91BCD4
oklch(77.3% 0.057 232.9)
-
Step 400
400
#62ABD0
oklch(70.8% 0.091 232.1)
-
Step 500
500
#2A95C4
oklch(63.2% 0.116 232.4)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#034863
oklch(37.8% 0.076 232.3)
-
Step 950
950
#082A3A
oklch(27% 0.048 233.3)
#91BCD4 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) | #B1BAD5 | 0.040 |
| Deuteranopia (no green cones) | #A7B3D4 | 0.035 |
| Tritanopia (no blue cones) | #7BC3C4 | 0.043 |
| Achromatopsia (no color) | #B6B6B6 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BCD4
#91BCD4
oklch(77.3% 0.057 232.9)
- #D3AC94
#D3AC94
oklch(77.3% 0.057 53.3)
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 #91BCD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.014
- Light Cornflower Blue #98C1D9 ΔE 0.017
- Cloudy Blue #ACC2D9 ΔE 0.039
- French Gray #ADB5BD ΔE 0.044
- Light Steel Blue #B0C4DE ΔE 0.047
- Sky Blue #87CEEB ΔE 0.050
- Lightblue #7BC8F6 ΔE 0.051
- Sky #82CAFC ΔE 0.059
Use #91BCD4 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.