#91BFEB
Closest named color: Light Cornflower Blue (#98C1D9). oklch(78.8% 0.08 247.7), rgb(145, 191, 235).
Aa
Black text reads best on this color (10.85:1).
About this color
#91BFEB is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.080 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Light Cornflower Blue (#98C1D9), ΔE 0.029 away. Black text reads best on it, at 10.85:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Cornflower Blue (#98C1D9) |
| Black text | 10.85:1 |
| White text | 1.93:1 |
Values
| HEX | #91BFEB |
| RGB | rgb(145, 191, 235) |
| HSL | hsl(209, 69%, 75%) |
| OKLCH | oklch(78.8% 0.08 247.7) |
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 #91BFEB | 1.93:1 | Fails | Lc -41.4 | Non-text elements, placeholder text |
| Black text on #91BFEB | 10.85:1 | AAA | Lc 66.9 | Content text, not long reading |
| #91BFEB text on white | 1.93:1 | Fails | Lc 37.0 | Non-text elements, placeholder text |
| #91BFEB text on black | 10.85:1 | AAA | Lc -65.4 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C3DCF6
oklch(88.4% 0.045 249.4)
-
Step 300
300 (this color)
#91BFEB
oklch(78.8% 0.08 247.7)
-
Step 400
400
#59A7EC
oklch(70.8% 0.128 247.4)
-
Step 500
500
#148EE6
oklch(63.1% 0.163 247.9)
-
Step 600
600
#0077C5
oklch(55.6% 0.149 247.9)
-
Step 700
700
#0064A7
oklch(49.1% 0.132 247.9)
-
Step 800
800
#00528A
oklch(42.8% 0.115 247.8)
-
Step 900
900
#004474
oklch(37.7% 0.101 247.8)
-
Step 950
950
#042845
oklch(27% 0.067 247.8)
#91BFEB 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) | #AEC0ED | 0.036 |
| Deuteranopia (no green cones) | #A2B6EA | 0.029 |
| Tritanopia (no blue cones) | #72C9CE | 0.066 |
| Achromatopsia (no color) | #BABABA | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BFEB
#91BFEB
oklch(78.8% 0.08 247.7)
- #DCB182
#DCB182
oklch(78.8% 0.08 68.7)
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 #91BFEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Lightblue #7BC8F6 ΔE 0.030
- Light Grey Blue #9DBCD4 ΔE 0.033
- Sky #82CAFC ΔE 0.033
- Pastel Blue #A2BFFE ΔE 0.036
- Carolina Blue #8AB8FE ΔE 0.039
- Light Sky Blue #87CEFA ΔE 0.040
- Sky Blue #87CEEB ΔE 0.041
Use #91BFEB 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.