#00DEF5
Closest named color: Aqua Blue (#02D8E9). oklch(82.4% 0.142 208), rgb(0, 222, 245).
Aa
Black text reads best on this color (12.76:1).
About this color
#00DEF5 is a light, vivid teal or cyan. In OKLCH its lightness is 82%, its chroma 0.142 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.021 away. Black text reads best on it, at 12.76:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.76:1 |
| White text | 1.64:1 |
Values
| HEX | #00DEF5 |
| RGB | rgb(0, 222, 245) |
| HSL | hsl(186, 100%, 48%) |
| OKLCH | oklch(82.4% 0.142 208) |
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 #00DEF5 | 1.64:1 | Fails | Lc -31.4 | Non-text elements, placeholder text |
| Black text on #00DEF5 | 12.76:1 | AAA | Lc 75.9 | Fine for body text |
| #00DEF5 text on white | 1.64:1 | Fails | Lc 27.9 | Dividers and decoration only |
| #00DEF5 text on black | 12.76:1 | AAA | Lc -75.1 | 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 300.
-
Step 50
50
#E8F9FC
oklch(97% 0.018 209.4)
-
Step 100
100
#CBF2F8
oklch(93.5% 0.041 207.8)
-
Step 200
200
#9AE8F4
oklch(88.5% 0.078 208.1)
-
Step 300
300 (this color)
#00DEF5
oklch(82.4% 0.142 208)
-
Step 400
400
#00B5C8
oklch(70.7% 0.122 208)
-
Step 500
500
#009BAC
oklch(63.1% 0.109 208.4)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#002D32
oklch(27.1% 0.046 206.3)
#00DEF5 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) | #C9D5F6 | 0.136 |
| Deuteranopia (no green cones) | #ADC1F5 | 0.124 |
| Tritanopia (no blue cones) | #00E9E5 | 0.044 |
| Achromatopsia (no color) | #CACACA | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00DEF5
#00DEF5
oklch(82.4% 0.142 208)
- #FFADA2
#FFADA2
oklch(82.4% 0.098 27.8)
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 #00DEF5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.021
- Turquoise #40E0D0 ΔE 0.055
- Bright Sky Blue #02CCFE ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.057
- Medium Turquoise #48D1CC ΔE 0.058
- Dark Turquoise #00CED1 ΔE 0.059
- Robin's Egg #6DEDFD ΔE 0.062
- Sky Blue #87CEEB ΔE 0.069
Use #00DEF5 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.