#99C8EE
Closest named color: Light Sky Blue (#87CEFA). oklch(81.3% 0.073 243.2), rgb(153, 200, 238).
Aa
Black text reads best on this color (11.85:1).
About this color
#99C8EE is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.073 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.025 away. Black text reads best on it, at 11.85:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 11.85:1 |
| White text | 1.77:1 |
Values
| HEX | #99C8EE |
| RGB | rgb(153, 200, 238) |
| HSL | hsl(207, 71%, 77%) |
| OKLCH | oklch(81.3% 0.073 243.2) |
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 #99C8EE | 1.77:1 | Fails | Lc -36.5 | Non-text elements, placeholder text |
| Black text on #99C8EE | 11.85:1 | AAA | Lc 71.3 | Content text, not long reading |
| #99C8EE text on white | 1.77:1 | Fails | Lc 32.5 | Non-text elements, placeholder text |
| #99C8EE text on black | 11.85:1 | AAA | Lc -70.1 | Content text, not long reading |
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 300.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C3DDF2
oklch(88.5% 0.04 242.4)
-
Step 300
300 (this color)
#99C8EE
oklch(81.3% 0.073 243.2)
-
Step 400
400
#59A8E4
oklch(70.6% 0.118 243.5)
-
Step 500
500
#0F91DC
oklch(63.1% 0.15 243.2)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005483
oklch(42.8% 0.104 243)
-
Step 900
900
#00456E
oklch(37.6% 0.092 243.7)
-
Step 950
950
#032942
oklch(27% 0.062 243.1)
#99C8EE 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) | #B8C8F0 | 0.038 |
| Deuteranopia (no green cones) | #ADBFED | 0.032 |
| Tritanopia (no blue cones) | #7CD1D4 | 0.060 |
| Achromatopsia (no color) | #C2C2C2 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99C8EE
#99C8EE
oklch(81.3% 0.073 243.2)
- #E4B891
#E4B891
oklch(81.2% 0.073 63.1)
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 #99C8EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.025
- Sky Blue #87CEEB ΔE 0.025
- Sky #82CAFC ΔE 0.029
- Baby Blue #A2CFFE ΔE 0.029
- Light Cornflower Blue #98C1D9 ΔE 0.031
- Lightblue #7BC8F6 ΔE 0.032
- Light Steel Blue #B0C4DE ΔE 0.032
- Cloudy Blue #ACC2D9 ΔE 0.034
Use #99C8EE 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.