#12DDEC
Closest named color: Aqua Blue (#02D8E9). oklch(81.9% 0.138 203.6), rgb(18, 221, 236).
Aa
Black text reads best on this color (12.57:1).
About this color
#12DDEC is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.138 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.014 away. Black text reads best on it, at 12.57:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.57:1 |
| White text | 1.66:1 |
Values
| HEX | #12DDEC |
| RGB | rgb(18, 221, 236) |
| HSL | hsl(184, 86%, 50%) |
| OKLCH | oklch(81.9% 0.138 203.6) |
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 #12DDEC | 1.66:1 | Fails | Lc -32.4 | Non-text elements, placeholder text |
| Black text on #12DDEC | 12.57:1 | AAA | Lc 75.1 | Fine for body text |
| #12DDEC text on white | 1.66:1 | Fails | Lc 28.8 | Dividers and decoration only |
| #12DDEC text on black | 12.57:1 | AAA | Lc -74.1 | 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
#E8F9FB
oklch(97% 0.018 205.3)
-
Step 100
100
#CCF2F6
oklch(93.5% 0.04 204.3)
-
Step 200
200
#9BE9F0
oklch(88.6% 0.077 203)
-
Step 300
300 (this color)
#12DDEC
oklch(81.9% 0.138 203.6)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#12DDEC 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) | #CAD3ED | 0.137 |
| Deuteranopia (no green cones) | #B0C0ED | 0.127 |
| Tritanopia (no blue cones) | #00E7E1 | 0.036 |
| Achromatopsia (no color) | #C8C8C8 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12DDEC
#12DDEC
oklch(81.9% 0.138 203.6)
- #FFAAA4
#FFAAA4
oklch(81.9% 0.101 23.9)
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 #12DDEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.014
- Turquoise #40E0D0 ΔE 0.044
- Medium Turquoise #48D1CC ΔE 0.047
- Dark Turquoise #00CED1 ΔE 0.050
- Vivid Sky Blue #4CC9F0 ΔE 0.058
- Bright Sky Blue #02CCFE ΔE 0.061
- Robin's Egg #6DEDFD ΔE 0.066
- Sky Blue #87CEEB ΔE 0.069
Use #12DDEC 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.