#91BCF4
Closest named color: Carolina Blue (#8AB8FE). oklch(78.5% 0.093 255.3), rgb(145, 188, 244).
Aa
Black text reads best on this color (10.70:1).
About this color
#91BCF4 is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.093 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Carolina Blue (#8AB8FE), ΔE 0.022 away. Black text reads best on it, at 10.70:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Carolina Blue (#8AB8FE) |
| Black text | 10.70:1 |
| White text | 1.96:1 |
Values
| HEX | #91BCF4 |
| RGB | rgb(145, 188, 244) |
| HSL | hsl(214, 82%, 76%) |
| OKLCH | oklch(78.5% 0.093 255.3) |
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 #91BCF4 | 1.96:1 | Fails | Lc -42.1 | Non-text elements, placeholder text |
| Black text on #91BCF4 | 10.70:1 | AAA | Lc 66.2 | Content text, not long reading |
| #91BCF4 text on white | 1.96:1 | Fails | Lc 37.7 | Non-text elements, placeholder text |
| #91BCF4 text on black | 10.70:1 | AAA | Lc -64.7 | 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
#C3DBFB
oklch(88.4% 0.051 255.7)
-
Step 300
300 (this color)
#91BCF4
oklch(78.5% 0.093 255.3)
-
Step 400
400
#5DA2FB
oklch(70.7% 0.149 255.6)
-
Step 500
500
#2588F8
oklch(63.1% 0.189 255.2)
-
Step 600
600
#0070DC
oklch(55.6% 0.186 255.4)
-
Step 700
700
#005EBA
oklch(49.1% 0.163 255.3)
-
Step 800
800
#004D9A
oklch(42.7% 0.142 255.2)
-
Step 900
900
#024081
oklch(37.7% 0.124 255.3)
-
Step 950
950
#06264B
oklch(27% 0.078 254.9)
#91BCF4 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) | #A7BEF7 | 0.028 |
| Deuteranopia (no green cones) | #9CB5F3 | 0.021 |
| Tritanopia (no blue cones) | #6EC8CF | 0.081 |
| Achromatopsia (no color) | #B9B9B9 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91BCF4
#91BCF4
oklch(78.5% 0.093 255.3)
- #DCB174
#DCB174
oklch(78.6% 0.093 75.4)
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 #91BCF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carolina Blue #8AB8FE ΔE 0.022
- Pastel Blue #A2BFFE ΔE 0.027
- Lightblue #7BC8F6 ΔE 0.036
- Sky #82CAFC ΔE 0.037
- Light Cornflower Blue #98C1D9 ΔE 0.046
- Light Sky Blue #87CEFA ΔE 0.047
- Light Grey Blue #9DBCD4 ΔE 0.048
- Sky Blue #87CEEB ΔE 0.054
Use #91BCF4 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.