#99DDF2
Closest named color: Light Blue (#ADD8E6). oklch(85.9% 0.074 219.1), rgb(153, 221, 242).
Aa
Black text reads best on this color (13.97:1).
About this color
#99DDF2 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 86%, its chroma 0.074 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.025 away. Black text reads best on it, at 13.97:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.97:1 |
| White text | 1.50:1 |
Values
| HEX | #99DDF2 |
| RGB | rgb(153, 221, 242) |
| HSL | hsl(194, 77%, 77%) |
| OKLCH | oklch(85.9% 0.074 219.1) |
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 #99DDF2 | 1.50:1 | Fails | Lc -26.6 | Dividers and decoration only |
| Black text on #99DDF2 | 13.97:1 | AAA | Lc 80.3 | Fine for body text |
| #99DDF2 text on white | 1.50:1 | Fails | Lc 23.4 | Dividers and decoration only |
| #99DDF2 text on black | 13.97:1 | AAA | Lc -79.8 | 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
#EDF8FB
oklch(97.2% 0.012 215.8)
-
Step 100
100
#D7EFF7
oklch(93.7% 0.028 219.8)
-
Step 200
200 (this color)
#99DDF2
oklch(85.9% 0.074 219.1)
-
Step 300
300
#74CFEA
oklch(80.8% 0.095 219.3)
-
Step 400
400
#00B2D6
oklch(70.6% 0.128 219.2)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#99DDF2 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) | #D0D9F3 | 0.064 |
| Deuteranopia (no green cones) | #C2CEF2 | 0.059 |
| Tritanopia (no blue cones) | #77E4E3 | 0.046 |
| Achromatopsia (no color) | #D3D3D3 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99DDF2
#99DDF2
oklch(85.9% 0.074 219.1)
- #FCC1AD
#FCC1AD
oklch(85.9% 0.074 39.5)
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 #99DDF2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.025
- Celeste #A8DADC ΔE 0.031
- Powder Blue #B0E0E6 ΔE 0.032
- Sky Blue #87CEEB ΔE 0.046
- Baby Blue #A2CFFE ΔE 0.047
- Robin's Egg Blue #98EFF9 ΔE 0.047
- Robin's Egg #6DEDFD ΔE 0.050
- Light Sky Blue #87CEFA ΔE 0.051
Use #99DDF2 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.