#00EFEA
Closest named color: Bright Aqua (#0BF9EA). oklch(86% 0.148 192.1), rgb(0, 239, 234).
Aa
Black text reads best on this color (14.53:1).
About this color
#00EFEA is a light, vivid teal or cyan. In OKLCH its lightness is 86%, its chroma 0.148 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.028 away. Black text reads best on it, at 14.53:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 14.53:1 |
| White text | 1.44:1 |
Values
| HEX | #00EFEA |
| RGB | rgb(0, 239, 234) |
| HSL | hsl(179, 100%, 47%) |
| OKLCH | oklch(86% 0.148 192.1) |
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 #00EFEA | 1.44:1 | Fails | Lc -23.4 | Dividers and decoration only |
| Black text on #00EFEA | 14.53:1 | AAA | Lc 83.2 | Fine for body text |
| #00EFEA text on white | 1.44:1 | Fails | Lc 20.5 | Dividers and decoration only |
| #00EFEA text on black | 14.53:1 | AAA | Lc -82.9 | 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 200.
-
Step 50
50
#E3FBFA
oklch(97% 0.025 193.7)
-
Step 100
100
#C0F6F3
oklch(93.5% 0.055 192)
-
Step 200
200 (this color)
#00EFEA
oklch(86% 0.148 192.1)
-
Step 300
300
#00DCD8
oklch(80.9% 0.139 192.4)
-
Step 400
400
#00B8B4
oklch(70.7% 0.121 192)
-
Step 500
500
#009E9A
oklch(63.2% 0.109 191.6)
-
Step 600
600
#008582
oklch(55.7% 0.096 192)
-
Step 700
700
#006F6D
oklch(49% 0.084 192.6)
-
Step 800
800
#005B59
oklch(42.6% 0.073 192.2)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#00EFEA 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) | #DFE2EA | 0.155 |
| Deuteranopia (no green cones) | #C5CEEB | 0.146 |
| Tritanopia (no blue cones) | #00F6ED | 0.019 |
| Achromatopsia (no color) | #D7D7D7 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00EFEA
#00EFEA
oklch(86% 0.148 192.1)
- #FFBDC4
#FFBDC4
oklch(86.1% 0.077 11.7)
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 #00EFEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.028
- Bright Light Blue #26F7FD ΔE 0.032
- Bright Turquoise #0FFEF9 ΔE 0.042
- Turquoise #40E0D0 ΔE 0.045
- Cyan #00FFFF ΔE 0.046
- Bright Cyan #41FDFE ΔE 0.047
- Robin's Egg #6DEDFD ΔE 0.050
- Aqua Marine #2EE8BB ΔE 0.062
Use #00EFEA 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.