#91B4E0
Closest named color: Light Grey Blue (#9DBCD4). oklch(76% 0.074 254.4), rgb(145, 180, 224).
Aa
Black text reads best on this color (9.80:1).
About this color
#91B4E0 is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.074 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.036 away. Black text reads best on it, at 9.80:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.80:1 |
| White text | 2.14:1 |
Values
| HEX | #91B4E0 |
| RGB | rgb(145, 180, 224) |
| HSL | hsl(213, 56%, 72%) |
| OKLCH | oklch(76% 0.074 254.4) |
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 #91B4E0 | 2.14:1 | Fails | Lc -46.7 | Large or bold text, headings |
| Black text on #91B4E0 | 9.80:1 | AAA | Lc 62.0 | Content text, not long reading |
| #91B4E0 text on white | 2.14:1 | Fails | Lc 42.0 | Non-text elements, placeholder text |
| #91B4E0 text on black | 9.80:1 | AAA | Lc -60.2 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF5
oklch(88.5% 0.042 255)
-
Step 300
300 (this color)
#91B4E0
oklch(76% 0.074 254.4)
-
Step 400
400
#6BA3E9
oklch(70.6% 0.119 254.6)
-
Step 500
500
#408BE2
oklch(63.1% 0.151 254.1)
-
Step 600
600
#1A73D0
oklch(55.7% 0.164 254.1)
-
Step 700
700
#095FB4
oklch(49% 0.153 254.5)
-
Step 800
800
#0F4E92
oklch(42.6% 0.127 254.6)
-
Step 900
900
#164274
oklch(37.7% 0.098 254.2)
-
Step 950
950
#0E2744
oklch(27% 0.062 253.9)
#91B4E0 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) | #A4B6E2 | 0.025 |
| Deuteranopia (no green cones) | #9BAEDF | 0.019 |
| Tritanopia (no blue cones) | #78BEC3 | 0.065 |
| Achromatopsia (no color) | #B1B1B1 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91B4E0
#91B4E0
oklch(76% 0.074 254.4)
- #CDAB7C
#CDAB7C
oklch(76% 0.074 75.3)
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 #91B4E0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.036
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Carolina Blue #8AB8FE ΔE 0.042
- Pastel Blue #A2BFFE ΔE 0.053
- Lightblue #7BC8F6 ΔE 0.055
- Cloudy Blue #ACC2D9 ΔE 0.056
- French Gray #ADB5BD ΔE 0.061
- Sky #82CAFC ΔE 0.061
Use #91B4E0 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.