#99D4E5
Closest named color: Light Blue (#ADD8E6). oklch(83.5% 0.065 217.6), rgb(153, 212, 229).
Aa
Black text reads best on this color (12.90:1).
About this color
#99D4E5 is a light, muted teal or cyan. In OKLCH its lightness is 84%, its chroma 0.065 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.026 away. Black text reads best on it, at 12.90:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 12.90:1 |
| White text | 1.62:1 |
Values
| HEX | #99D4E5 |
| RGB | rgb(153, 212, 229) |
| HSL | hsl(193, 59%, 75%) |
| OKLCH | oklch(83.5% 0.065 217.6) |
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 #99D4E5 | 1.62:1 | Fails | Lc -31.5 | Non-text elements, placeholder text |
| Black text on #99D4E5 | 12.90:1 | AAA | Lc 75.8 | Fine for body text |
| #99D4E5 text on white | 1.62:1 | Fails | Lc 28.0 | Dividers and decoration only |
| #99D4E5 text on black | 12.90:1 | AAA | Lc -75.0 | 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
#EFF7F9
oklch(97.1% 0.009 214.3)
-
Step 100
100
#DDEDF2
oklch(93.6% 0.018 218.4)
-
Step 200
200
#C0DFE9
oklch(88.4% 0.036 219.2)
-
Step 300
300 (this color)
#99D4E5
oklch(83.5% 0.065 217.6)
-
Step 400
400
#45B0CB
oklch(70.7% 0.104 217.6)
-
Step 500
500
#0099B6
oklch(63% 0.113 217.6)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#99D4E5 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) | #C9D0E6 | 0.058 |
| Deuteranopia (no green cones) | #BCC7E5 | 0.051 |
| Tritanopia (no blue cones) | #7EDAD9 | 0.038 |
| Achromatopsia (no color) | #CBCBCB | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99D4E5
#99D4E5
oklch(83.5% 0.065 217.6)
- #EFBBAB
#EFBBAB
oklch(83.5% 0.064 37.8)
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 #99D4E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.026
- Sky Blue #87CEEB ΔE 0.029
- Celeste #A8DADC ΔE 0.029
- Light Blue Grey #B7C9E2 ΔE 0.042
- Light Sky Blue #87CEFA ΔE 0.042
- Powder Blue #B0E0E6 ΔE 0.044
- Baby Blue #A2CFFE ΔE 0.044
- Light Steel Blue #B0C4DE ΔE 0.046
Use #99D4E5 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.