#99DDE2
Closest named color: Celeste (#A8DADC). oklch(85.4% 0.068 201.8), rgb(153, 221, 226).
Aa
Black text reads best on this color (13.79:1).
About this color
#99DDE2 is a light, muted teal or cyan. In OKLCH its lightness is 85%, its chroma 0.068 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.017 away. Black text reads best on it, at 13.79:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.79:1 |
| White text | 1.52:1 |
Values
| HEX | #99DDE2 |
| RGB | rgb(153, 221, 226) |
| HSL | hsl(184, 56%, 74%) |
| OKLCH | oklch(85.4% 0.068 201.8) |
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 #99DDE2 | 1.52:1 | Fails | Lc -27.4 | Dividers and decoration only |
| Black text on #99DDE2 | 13.79:1 | AAA | Lc 79.6 | Fine for body text |
| #99DDE2 text on white | 1.52:1 | Fails | Lc 24.2 | Dividers and decoration only |
| #99DDE2 text on black | 13.79:1 | AAA | Lc -79.0 | 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
#EDF8F9
oklch(97.1% 0.012 203.5)
-
Step 100
100
#D7EFF1
oklch(93.5% 0.025 202.8)
-
Step 200
200 (this color)
#99DDE2
oklch(85.4% 0.068 201.8)
-
Step 300
300
#76D2D9
oklch(80.9% 0.088 202)
-
Step 400
400
#00B6C0
oklch(70.7% 0.12 201.8)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#99DDE2 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) | #D3D7E2 | 0.069 |
| Deuteranopia (no green cones) | #C6CDE2 | 0.064 |
| Tritanopia (no blue cones) | #7EE2DE | 0.029 |
| Achromatopsia (no color) | #D1D1D1 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99DDE2
#99DDE2
oklch(85.4% 0.068 201.8)
- #F9BEBB
#F9BEBB
oklch(85.4% 0.068 21.9)
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 #99DDE2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.017
- Light Blue #ADD8E6 ΔE 0.027
- Powder Blue #B0E0E6 ΔE 0.028
- Robin's Egg Blue #98EFF9 ΔE 0.049
- Sky Blue #87CEEB ΔE 0.052
- Tiffany Blue #94D2BD ΔE 0.053
- Pale Turquoise #AFEEEE ΔE 0.054
- Robin's Egg #6DEDFD ΔE 0.054
Use #99DDE2 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.