#99D5EE
Closest named color: Light Blue (#ADD8E6). oklch(84.1% 0.07 225.7), rgb(153, 213, 238).
Aa
Black text reads best on this color (13.10:1).
About this color
#99D5EE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.070 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.027 away. Black text reads best on it, at 13.10:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.10:1 |
| White text | 1.60:1 |
Values
| HEX | #99D5EE |
| RGB | rgb(153, 213, 238) |
| HSL | hsl(198, 71%, 77%) |
| OKLCH | oklch(84.1% 0.07 225.7) |
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 #99D5EE | 1.60:1 | Fails | Lc -30.6 | Non-text elements, placeholder text |
| Black text on #99D5EE | 13.10:1 | AAA | Lc 76.7 | Fine for body text |
| #99D5EE text on white | 1.60:1 | Fails | Lc 27.1 | Dividers and decoration only |
| #99D5EE text on black | 13.10:1 | AAA | Lc -75.9 | 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 300.
-
Step 50
50
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DCEDF4
oklch(93.6% 0.02 224.3)
-
Step 200
200
#BFDFED
oklch(88.5% 0.039 226.1)
-
Step 300
300 (this color)
#99D5EE
oklch(84.1% 0.07 225.7)
-
Step 400
400
#41AFD6
oklch(70.8% 0.113 225.5)
-
Step 500
500
#0097C0
oklch(63% 0.12 225.7)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005871
oklch(42.8% 0.081 225.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#99D5EE 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) | #C7D2EF | 0.055 |
| Deuteranopia (no green cones) | #BBC8EE | 0.050 |
| Tritanopia (no blue cones) | #7ADDDD | 0.048 |
| Achromatopsia (no color) | #CCCCCC | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99D5EE
#99D5EE
oklch(84.1% 0.07 225.7)
- #F3BDA5
#F3BDA5
oklch(84.1% 0.071 45.1)
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 #99D5EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.027
- Sky Blue #87CEEB ΔE 0.028
- Baby Blue #A2CFFE ΔE 0.034
- Light Sky Blue #87CEFA ΔE 0.035
- Celeste #A8DADC ΔE 0.036
- Light Blue Grey #B7C9E2 ΔE 0.043
- Powder Blue #B0E0E6 ΔE 0.045
- Light Steel Blue #B0C4DE ΔE 0.048
Use #99D5EE 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.