#00E4EE
Closest named color: Aqua Blue (#02D8E9). oklch(83.5% 0.142 200.5), rgb(0, 228, 238).
Aa
Black text reads best on this color (13.33:1).
About this color
#00E4EE is a light, vivid teal or cyan. In OKLCH its lightness is 84%, its chroma 0.142 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.033 away. Black text reads best on it, at 13.33:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 13.33:1 |
| White text | 1.57:1 |
Values
| HEX | #00E4EE |
| RGB | rgb(0, 228, 238) |
| HSL | hsl(183, 100%, 47%) |
| OKLCH | oklch(83.5% 0.142 200.5) |
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 #00E4EE | 1.57:1 | Fails | Lc -28.8 | Dividers and decoration only |
| Black text on #00E4EE | 13.33:1 | AAA | Lc 78.3 | Fine for body text |
| #00E4EE text on white | 1.57:1 | Fails | Lc 25.5 | Dividers and decoration only |
| #00E4EE text on black | 13.33:1 | AAA | Lc -77.6 | 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
#E8FAFB
oklch(97.2% 0.019 200.9)
-
Step 100
100
#CBF3F5
oklch(93.7% 0.041 200.2)
-
Step 200
200
#99E9EE
oklch(88.4% 0.078 200.9)
-
Step 300
300 (this color)
#00E4EE
oklch(83.5% 0.142 200.5)
-
Step 400
400
#00B6BF
oklch(70.6% 0.12 201.1)
-
Step 500
500
#009CA3
oklch(63% 0.107 200.4)
-
Step 600
600
#008389
oklch(55.5% 0.094 200.5)
-
Step 700
700
#006F74
oklch(49.2% 0.084 200.3)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#00E4EE 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) | #D2D9EF | 0.145 |
| Deuteranopia (no green cones) | #B7C6EF | 0.133 |
| Tritanopia (no blue cones) | #00EDE7 | 0.030 |
| Achromatopsia (no color) | #CECECE | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00E4EE
#00E4EE
oklch(83.5% 0.142 200.5)
- #FFB2B0
#FFB2B0
oklch(83.6% 0.09 20.8)
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 #00E4EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.033
- Turquoise #40E0D0 ΔE 0.040
- Bright Light Blue #26F7FD ΔE 0.053
- Robin's Egg #6DEDFD ΔE 0.054
- Medium Turquoise #48D1CC ΔE 0.059
- Bright Aqua #0BF9EA ΔE 0.061
- Dark Turquoise #00CED1 ΔE 0.065
- Bright Turquoise #0FFEF9 ΔE 0.070
Use #00E4EE 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.