#00DDF8
Closest named color: Aqua Blue (#02D8E9). oklch(82.3% 0.142 210.3), rgb(0, 221, 248).
Aa
Black text reads best on this color (12.69:1).
About this color
#00DDF8 is a light, vivid teal or cyan. In OKLCH its lightness is 82%, its chroma 0.142 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.023 away. Black text reads best on it, at 12.69:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.69:1 |
| White text | 1.65:1 |
Values
| HEX | #00DDF8 |
| RGB | rgb(0, 221, 248) |
| HSL | hsl(187, 100%, 49%) |
| OKLCH | oklch(82.3% 0.142 210.3) |
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 #00DDF8 | 1.65:1 | Fails | Lc -31.8 | Non-text elements, placeholder text |
| Black text on #00DDF8 | 12.69:1 | AAA | Lc 75.6 | Fine for body text |
| #00DDF8 text on white | 1.65:1 | Fails | Lc 28.2 | Dividers and decoration only |
| #00DDF8 text on black | 12.69:1 | AAA | Lc -74.8 | 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
#E8F9FD
oklch(97.1% 0.019 213.4)
-
Step 100
100
#CBF2F9
oklch(93.6% 0.041 209.7)
-
Step 200
200
#9AE8F6
oklch(88.5% 0.079 210)
-
Step 300
300 (this color)
#00DDF8
oklch(82.3% 0.142 210.3)
-
Step 400
400
#00B4CB
oklch(70.6% 0.122 210.8)
-
Step 500
500
#009BAE
oklch(63.2% 0.109 210)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#00DDF8 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) | #C7D4FA | 0.134 |
| Deuteranopia (no green cones) | #ABC1F8 | 0.120 |
| Tritanopia (no blue cones) | #00E9E5 | 0.049 |
| Achromatopsia (no color) | #C9C9C9 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00DDF8
#00DDF8
oklch(82.3% 0.142 210.3)
- #FFAD9E
#FFAD9E
oklch(82.3% 0.1 30.8)
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 #00DDF8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.023
- Bright Sky Blue #02CCFE ΔE 0.051
- Vivid Sky Blue #4CC9F0 ΔE 0.053
- Turquoise #40E0D0 ΔE 0.061
- Medium Turquoise #48D1CC ΔE 0.061
- Dark Turquoise #00CED1 ΔE 0.061
- Robin's Egg #6DEDFD ΔE 0.064
- Sky Blue #87CEEB ΔE 0.068
Use #00DDF8 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.