#04EFEE
Closest named color: Bright Light Blue (#26F7FD). oklch(86.2% 0.147 194.2), rgb(4, 239, 238).
Aa
Black text reads best on this color (14.58:1).
About this color
#04EFEE is a light, vivid teal or cyan. In OKLCH its lightness is 86%, its chroma 0.147 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Light Blue (#26F7FD), ΔE 0.028 away. Black text reads best on it, at 14.58:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Bright Light Blue (#26F7FD) |
| Black text | 14.58:1 |
| White text | 1.43:1 |
Values
| HEX | #04EFEE |
| RGB | rgb(4, 239, 238) |
| HSL | hsl(180, 97%, 48%) |
| OKLCH | oklch(86.2% 0.147 194.2) |
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 #04EFEE | 1.43:1 | Fails | Lc -23.1 | Dividers and decoration only |
| Black text on #04EFEE | 14.58:1 | AAA | Lc 83.4 | Fine for body text |
| #04EFEE text on white | 1.43:1 | Fails | Lc 20.3 | Dividers and decoration only |
| #04EFEE text on black | 14.58:1 | AAA | Lc -83.1 | 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
#E3FBFA
oklch(97% 0.025 193.7)
-
Step 100
100
#C0F6F5
oklch(93.6% 0.055 194.8)
-
Step 200
200 (this color)
#04EFEE
oklch(86.2% 0.147 194.2)
-
Step 300
300
#00DCDB
oklch(81% 0.138 194.2)
-
Step 400
400
#00B8B7
oklch(70.8% 0.121 194.1)
-
Step 500
500
#009D9D
oklch(63% 0.108 194.8)
-
Step 600
600
#008484
oklch(55.5% 0.095 194.8)
-
Step 700
700
#006F6F
oklch(49% 0.084 194.8)
-
Step 800
800
#005B5B
oklch(42.7% 0.073 194.8)
-
Step 900
900
#004C4C
oklch(37.7% 0.064 194.8)
-
Step 950
950
#002D2D
oklch(26.9% 0.046 194.8)
#04EFEE 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) | #DEE2EE | 0.153 |
| Deuteranopia (no green cones) | #C3CFEF | 0.142 |
| Tritanopia (no blue cones) | #00F7EE | 0.022 |
| Achromatopsia (no color) | #D7D7D7 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04EFEE
#04EFEE
oklch(86.2% 0.147 194.2)
- #FFBEC2
#FFBEC2
oklch(86.2% 0.075 14.6)
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 #04EFEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Light Blue #26F7FD ΔE 0.028
- Bright Aqua #0BF9EA ΔE 0.030
- Bright Turquoise #0FFEF9 ΔE 0.041
- Cyan #00FFFF ΔE 0.044
- Bright Cyan #41FDFE ΔE 0.044
- Robin's Egg #6DEDFD ΔE 0.046
- Turquoise #40E0D0 ΔE 0.048
- Aqua Blue #02D8E9 ΔE 0.063
Use #04EFEE 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.