#91C4EF
Closest named color: Lightblue (#7BC8F6). oklch(80% 0.081 244.5), rgb(145, 196, 239).
Aa
Black text reads best on this color (11.34:1).
About this color
#91C4EF is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.081 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Lightblue (#7BC8F6), ΔE 0.023 away. Black text reads best on it, at 11.34:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Lightblue (#7BC8F6) |
| Black text | 11.34:1 |
| White text | 1.85:1 |
Values
| HEX | #91C4EF |
| RGB | rgb(145, 196, 239) |
| HSL | hsl(207, 75%, 75%) |
| OKLCH | oklch(80% 0.081 244.5) |
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 #91C4EF | 1.85:1 | Fails | Lc -38.9 | Non-text elements, placeholder text |
| Black text on #91C4EF | 11.34:1 | AAA | Lc 69.1 | Content text, not long reading |
| #91C4EF text on white | 1.85:1 | Fails | Lc 34.8 | Non-text elements, placeholder text |
| #91C4EF text on black | 11.34:1 | AAA | Lc -67.8 | 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
#DDECF9
oklch(93.6% 0.024 244.1)
-
Step 200
200
#C1DDF6
oklch(88.5% 0.046 245.3)
-
Step 300
300 (this color)
#91C4EF
oklch(80% 0.081 244.5)
-
Step 400
400
#50A8EC
oklch(70.7% 0.131 244.6)
-
Step 500
500
#0090E1
oklch(63.1% 0.158 244.7)
-
Step 600
600
#0079BE
oklch(55.6% 0.139 244.6)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#00456F
oklch(37.6% 0.093 244.3)
-
Step 950
950
#002945
oklch(27.1% 0.068 244.5)
#91C4EF 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) | #B2C4F1 | 0.040 |
| Deuteranopia (no green cones) | #A6BAEE | 0.034 |
| Tritanopia (no blue cones) | #6FCED2 | 0.067 |
| Achromatopsia (no color) | #BEBEBE | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C4EF
#91C4EF
oklch(80% 0.081 244.5)
- #E3B386
#E3B386
oklch(80% 0.082 64.4)
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 #91C4EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lightblue #7BC8F6 ΔE 0.023
- Sky #82CAFC ΔE 0.023
- Light Sky Blue #87CEFA ΔE 0.027
- Sky Blue #87CEEB ΔE 0.030
- Light Cornflower Blue #98C1D9 ΔE 0.031
- Pastel Blue #A2BFFE ΔE 0.035
- Light Grey Blue #9DBCD4 ΔE 0.039
- Baby Blue #A2CFFE ΔE 0.040
Use #91C4EF 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.