#91DDF9
Closest named color: Light Blue (#ADD8E6). oklch(85.8% 0.084 223.3), rgb(145, 221, 249).
Aa
Black text reads best on this color (13.91:1).
About this color
#91DDF9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.084 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.036 away. Black text reads best on it, at 13.91:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.91:1 |
| White text | 1.50:1 |
Values
| HEX | #91DDF9 |
| RGB | rgb(145, 221, 249) |
| HSL | hsl(196, 90%, 77%) |
| OKLCH | oklch(85.8% 0.084 223.3) |
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 #91DDF9 | 1.50:1 | Fails | Lc -26.8 | Dividers and decoration only |
| Black text on #91DDF9 | 13.91:1 | AAA | Lc 80.1 | Fine for body text |
| #91DDF9 text on white | 1.50:1 | Fails | Lc 23.7 | Dividers and decoration only |
| #91DDF9 text on black | 13.91:1 | AAA | Lc -79.5 | 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
#D4EFF9
oklch(93.6% 0.031 222.1)
-
Step 200
200 (this color)
#91DDF9
oklch(85.8% 0.084 223.3)
-
Step 300
300
#68D0F4
oklch(80.9% 0.109 223.3)
-
Step 400
400
#00B1DC
oklch(70.6% 0.132 223.3)
-
Step 500
500
#0098BD
oklch(63.1% 0.118 223.1)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#002B38
oklch(26.8% 0.05 223.6)
#91DDF9 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) | #CDD9FB | 0.069 |
| Deuteranopia (no green cones) | #BDCDF9 | 0.061 |
| Tritanopia (no blue cones) | #65E6E6 | 0.056 |
| Achromatopsia (no color) | #D2D2D2 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91DDF9
#91DDF9
oklch(85.8% 0.084 223.3)
- #FFC0A6
#FFC0A6
oklch(85.9% 0.081 43.4)
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 #91DDF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.036
- Baby Blue #A2CFFE ΔE 0.043
- Celeste #A8DADC ΔE 0.043
- Sky Blue #87CEEB ΔE 0.043
- Powder Blue #B0E0E6 ΔE 0.043
- Light Sky Blue #87CEFA ΔE 0.044
- Robin's Egg #6DEDFD ΔE 0.047
- Robin's Egg Blue #98EFF9 ΔE 0.050
Use #91DDF9 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.