#91C1FF
Closest named color: Pastel Blue (#A2BFFE). oklch(80% 0.102 255.1), rgb(145, 193, 255).
Aa
Black text reads best on this color (11.27:1).
About this color
#91C1FF is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.102 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.020 away. Black text reads best on it, at 11.27:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.27:1 |
| White text | 1.86:1 |
Values
| HEX | #91C1FF |
| RGB | rgb(145, 193, 255) |
| HSL | hsl(214, 100%, 78%) |
| OKLCH | oklch(80% 0.102 255.1) |
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 #91C1FF | 1.86:1 | Fails | Lc -39.3 | Non-text elements, placeholder text |
| Black text on #91C1FF | 11.27:1 | AAA | Lc 68.8 | Content text, not long reading |
| #91C1FF text on white | 1.86:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #91C1FF text on black | 11.27:1 | AAA | Lc -67.5 | 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
#EFF6FF
oklch(97% 0.014 254.6)
-
Step 100
100
#DDEBFE
oklch(93.5% 0.03 256)
-
Step 200
200
#C1DCFF
oklch(88.6% 0.056 255)
-
Step 300
300 (this color)
#91C1FF
oklch(80% 0.102 255.1)
-
Step 400
400
#58A2FF
oklch(70.7% 0.156 255.2)
-
Step 500
500
#1387FF
oklch(63.1% 0.201 255.1)
-
Step 600
600
#0070DB
oklch(55.5% 0.184 255.3)
-
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
#004081
oklch(37.7% 0.124 254.9)
-
Step 950
950
#02254F
oklch(26.9% 0.087 255.6)
#91C1FF 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) | #AAC4FF | 0.031 |
| Deuteranopia (no green cones) | #9DB9FE | 0.023 |
| Tritanopia (no blue cones) | #67CFD6 | 0.090 |
| Achromatopsia (no color) | #BEBEBE | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91C1FF
#91C1FF
oklch(80% 0.102 255.1)
- #E4B571
#E4B571
oklch(80.1% 0.102 75.7)
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 #91C1FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.020
- Carolina Blue #8AB8FE ΔE 0.026
- Sky #82CAFC ΔE 0.029
- Lightblue #7BC8F6 ΔE 0.033
- Light Sky Blue #87CEFA ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.045
- Sky Blue #87CEEB ΔE 0.053
- Light Cornflower Blue #98C1D9 ΔE 0.055
Use #91C1FF 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.