#91BEF4
Closest named color: Pastel Blue (#A2BFFE). oklch(78.9% 0.091 253.4), rgb(145, 190, 244).
Aa
Black text reads best on this color (10.87:1).
About this color
#91BEF4 is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.091 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.026 away. Black text reads best on it, at 10.87:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.87:1 |
| White text | 1.93:1 |
Values
| HEX | #91BEF4 |
| RGB | rgb(145, 190, 244) |
| HSL | hsl(213, 82%, 76%) |
| OKLCH | oklch(78.9% 0.091 253.4) |
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 #91BEF4 | 1.93:1 | Fails | Lc -41.2 | Non-text elements, placeholder text |
| Black text on #91BEF4 | 10.87:1 | AAA | Lc 67.0 | Content text, not long reading |
| #91BEF4 text on white | 1.93:1 | Fails | Lc 36.9 | Non-text elements, placeholder text |
| #91BEF4 text on black | 10.87:1 | AAA | Lc -65.5 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C2DCFB
oklch(88.5% 0.051 252.9)
-
Step 300
300 (this color)
#91BEF4
oklch(78.9% 0.091 253.4)
-
Step 400
400
#5AA3F9
oklch(70.6% 0.146 253.8)
-
Step 500
500
#1A89F6
oklch(63% 0.187 253.6)
-
Step 600
600
#0073D5
oklch(55.7% 0.173 253.3)
-
Step 700
700
#0060B4
oklch(49.1% 0.153 253.4)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900
#00417E
oklch(37.7% 0.118 253.6)
-
Step 950
950
#04274B
oklch(27.2% 0.077 253)
#91BEF4 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) | #AAC0F6 | 0.031 |
| Deuteranopia (no green cones) | #9EB6F3 | 0.024 |
| Tritanopia (no blue cones) | #6DCAD0 | 0.080 |
| Achromatopsia (no color) | #BABABA | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BEF4
#91BEF4
oklch(78.9% 0.091 253.4)
- #DEB277
#DEB277
oklch(79% 0.092 74)
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 #91BEF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.026
- Carolina Blue #8AB8FE ΔE 0.026
- Lightblue #7BC8F6 ΔE 0.032
- Sky #82CAFC ΔE 0.032
- Light Sky Blue #87CEFA ΔE 0.041
- Light Cornflower Blue #98C1D9 ΔE 0.043
- Light Grey Blue #9DBCD4 ΔE 0.046
- Sky Blue #87CEEB ΔE 0.049
Use #91BEF4 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.