#91C5F8
Closest named color: Sky (#82CAFC). oklch(80.6% 0.091 248.5), rgb(145, 197, 248).
Aa
Black text reads best on this color (11.54:1).
About this color
#91C5F8 is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.091 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Sky (#82CAFC), ΔE 0.018 away. Black text reads best on it, at 11.54:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Sky (#82CAFC) |
| Black text | 11.54:1 |
| White text | 1.81:1 |
Values
| HEX | #91C5F8 |
| RGB | rgb(145, 197, 248) |
| HSL | hsl(210, 88%, 77%) |
| OKLCH | oklch(80.6% 0.091 248.5) |
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 #91C5F8 | 1.81:1 | Fails | Lc -38.0 | Non-text elements, placeholder text |
| Black text on #91C5F8 | 11.54:1 | AAA | Lc 70.0 | Content text, not long reading |
| #91C5F8 text on white | 1.81:1 | Fails | Lc 33.9 | Non-text elements, placeholder text |
| #91C5F8 text on black | 11.54:1 | AAA | Lc -68.7 | 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
#EFF6FD
oklch(97% 0.012 248)
-
Step 100
100
#DDECFB
oklch(93.6% 0.026 248.1)
-
Step 200
200
#C0DDFA
oklch(88.6% 0.051 248.4)
-
Step 300
300 (this color)
#91C5F8
oklch(80.6% 0.091 248.5)
-
Step 400
400
#4DA6F6
oklch(70.6% 0.145 248.5)
-
Step 500
500
#008DEB
oklch(63% 0.172 248.6)
-
Step 600
600
#0077C7
oklch(55.7% 0.152 248.5)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#004475
oklch(37.8% 0.103 248.3)
-
Step 950
950
#002848
oklch(27% 0.073 248.1)
#91C5F8 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) | #B1C6FA | 0.039 |
| Deuteranopia (no green cones) | #A4BBF7 | 0.032 |
| Tritanopia (no blue cones) | #6AD1D6 | 0.078 |
| Achromatopsia (no color) | #C0C0C0 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C5F8
#91C5F8
oklch(80.6% 0.091 248.5)
- #E7B57F
#E7B57F
oklch(80.6% 0.091 68.1)
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 #91C5F8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky #82CAFC ΔE 0.018
- Lightblue #7BC8F6 ΔE 0.023
- Light Sky Blue #87CEFA ΔE 0.024
- Pastel Blue #A2BFFE ΔE 0.027
- Baby Blue #A2CFFE ΔE 0.035
- Sky Blue #87CEEB ΔE 0.036
- Carolina Blue #8AB8FE ΔE 0.040
- Light Cornflower Blue #98C1D9 ΔE 0.043
Use #91C5F8 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.