#91DDFB
Closest named color: Light Blue (#ADD8E6). oklch(85.9% 0.086 224.9), rgb(145, 221, 251).
Aa
Black text reads best on this color (13.93:1).
About this color
#91DDFB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.086 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.037 away. Black text reads best on it, at 13.93:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.93:1 |
| White text | 1.50:1 |
Values
| HEX | #91DDFB |
| RGB | rgb(145, 221, 251) |
| HSL | hsl(197, 93%, 78%) |
| OKLCH | oklch(85.9% 0.086 224.9) |
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 #91DDFB | 1.50:1 | Fails | Lc -26.7 | Dividers and decoration only |
| Black text on #91DDFB | 13.93:1 | AAA | Lc 80.2 | Fine for body text |
| #91DDFB text on white | 1.50:1 | Fails | Lc 23.6 | Dividers and decoration only |
| #91DDFB text on black | 13.93:1 | AAA | Lc -79.6 | Fine for body text |
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 200.
-
Step 50
50
#ECF8FD
oklch(97.2% 0.014 224.5)
-
Step 100
100
#D4EFFA
oklch(93.6% 0.032 224.2)
-
Step 200
200 (this color)
#91DDFB
oklch(85.9% 0.086 224.9)
-
Step 300
300
#68D0F6
oklch(81% 0.11 224.6)
-
Step 400
400
#00B1DF
oklch(70.7% 0.134 225)
-
Step 500
500
#0098BF
oklch(63.2% 0.119 224.4)
-
Step 600
600
#007FA1
oklch(55.5% 0.105 225)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#91DDFB 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) | #CCD9FD | 0.067 |
| Deuteranopia (no green cones) | #BDCDFB | 0.061 |
| Tritanopia (no blue cones) | #64E6E6 | 0.058 |
| Achromatopsia (no color) | #D2D2D2 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91DDFB
#91DDFB
oklch(85.9% 0.086 224.9)
- #FFC0A4
#FFC0A4
oklch(85.8% 0.082 45)
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 #91DDFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.037
- Baby Blue #A2CFFE ΔE 0.041
- Light Sky Blue #87CEFA ΔE 0.043
- Sky Blue #87CEEB ΔE 0.044
- Powder Blue #B0E0E6 ΔE 0.045
- Celeste #A8DADC ΔE 0.045
- Robin's Egg #6DEDFD ΔE 0.048
- Robin's Egg Blue #98EFF9 ΔE 0.051
Use #91DDFB 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.