#99DDEB
Closest named color: Light Blue (#ADD8E6). oklch(85.7% 0.071 211.9), rgb(153, 221, 235).
Aa
Black text reads best on this color (13.89:1).
About this color
#99DDEB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.071 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.023 away. Black text reads best on it, at 13.89:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.89:1 |
| White text | 1.51:1 |
Values
| HEX | #99DDEB |
| RGB | rgb(153, 221, 235) |
| HSL | hsl(190, 67%, 76%) |
| OKLCH | oklch(85.7% 0.071 211.9) |
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 #99DDEB | 1.51:1 | Fails | Lc -27.0 | Dividers and decoration only |
| Black text on #99DDEB | 13.89:1 | AAA | Lc 80.0 | Fine for body text |
| #99DDEB text on white | 1.51:1 | Fails | Lc 23.8 | Dividers and decoration only |
| #99DDEB text on black | 13.89:1 | AAA | Lc -79.4 | 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
#EDF8FA
oklch(97.1% 0.012 209.8)
-
Step 100
100
#D7EFF4
oklch(93.6% 0.026 211.6)
-
Step 200
200 (this color)
#99DDEB
oklch(85.7% 0.071 211.9)
-
Step 300
300
#75D1E3
oklch(81% 0.091 211.7)
-
Step 400
400
#00B4CD
oklch(70.7% 0.123 212.1)
-
Step 500
500
#009AB0
oklch(63% 0.11 212.4)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#99DDEB 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) | #D1D8EC | 0.066 |
| Deuteranopia (no green cones) | #C4CEEB | 0.061 |
| Tritanopia (no blue cones) | #7AE3E1 | 0.038 |
| Achromatopsia (no color) | #D2D2D2 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99DDEB
#99DDEB
oklch(85.7% 0.071 211.9)
- #FBC0B3
#FBC0B3
oklch(85.8% 0.071 32.7)
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 #99DDEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.023
- Celeste #A8DADC ΔE 0.023
- Powder Blue #B0E0E6 ΔE 0.028
- Robin's Egg Blue #98EFF9 ΔE 0.047
- Sky Blue #87CEEB ΔE 0.047
- Robin's Egg #6DEDFD ΔE 0.050
- Robin Egg Blue #8AF1FE ΔE 0.052
- Baby Blue #A2CFFE ΔE 0.054
Use #99DDEB 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.