#99DAFF
Closest named color: Baby Blue (#A2CFFE). oklch(85.8% 0.084 234), rgb(153, 218, 255).
Aa
Black text reads best on this color (13.82:1).
About this color
#99DAFF is a light, moderately saturated blue. In OKLCH its lightness is 86%, its chroma 0.084 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.029 away. Black text reads best on it, at 13.82:1.
| Hue family | Blues |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 13.82:1 |
| White text | 1.51:1 |
Values
| HEX | #99DAFF |
| RGB | rgb(153, 218, 255) |
| HSL | hsl(202, 100%, 80%) |
| OKLCH | oklch(85.8% 0.084 234) |
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 #99DAFF | 1.51:1 | Fails | Lc -27.3 | Dividers and decoration only |
| Black text on #99DAFF | 13.82:1 | AAA | Lc 79.7 | Fine for body text |
| #99DAFF text on white | 1.51:1 | Fails | Lc 24.1 | Dividers and decoration only |
| #99DAFF text on black | 13.82:1 | AAA | Lc -79.1 | 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
#EDF7FE
oklch(97.1% 0.014 238)
-
Step 100
100
#D7EEFC
oklch(93.6% 0.031 234.4)
-
Step 200
200 (this color)
#99DAFF
oklch(85.8% 0.084 234)
-
Step 300
300
#75CCFB
oklch(80.8% 0.107 233.9)
-
Step 400
400
#00AEEE
oklch(70.7% 0.148 233.9)
-
Step 500
500
#0095CD
oklch(63.1% 0.132 234.2)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004865
oklch(37.8% 0.079 233.7)
-
Step 950
950
#002A3E
oklch(26.9% 0.057 235.2)
#99DAFF 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) | #C9D8FF | 0.055 |
| Deuteranopia (no green cones) | #BACDFE | 0.048 |
| Tritanopia (no blue cones) | #72E4E6 | 0.063 |
| Achromatopsia (no color) | #D2D2D2 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99DAFF
#99DAFF
oklch(85.8% 0.084 234)
- #FCC29D
#FCC29D
oklch(85.7% 0.083 53.8)
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 #99DAFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.029
- Light Blue #ADD8E6 ΔE 0.038
- Light Sky Blue #87CEFA ΔE 0.039
- Sky Blue #87CEEB ΔE 0.045
- Powder Blue #B0E0E6 ΔE 0.049
- Celeste #A8DADC ΔE 0.051
- Sky #82CAFC ΔE 0.052
- Light Blue Grey #B7C9E2 ΔE 0.056
Use #99DAFF 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.