#1DE4CF
Closest named color: Turquoise (#40E0D0). oklch(82.7% 0.144 183), rgb(29, 228, 207).
Aa
Black text reads best on this color (13.05:1).
About this color
#1DE4CF is a light, vivid teal or cyan. In OKLCH its lightness is 83%, its chroma 0.144 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.015 away. Black text reads best on it, at 13.05:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 13.05:1 |
| White text | 1.60:1 |
Values
| HEX | #1DE4CF |
| RGB | rgb(29, 228, 207) |
| HSL | hsl(174, 79%, 50%) |
| OKLCH | oklch(82.7% 0.144 183) |
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 #1DE4CF | 1.60:1 | Fails | Lc -30.3 | Non-text elements, placeholder text |
| Black text on #1DE4CF | 13.05:1 | AAA | Lc 77.0 | Fine for body text |
| #1DE4CF text on white | 1.60:1 | Fails | Lc 26.8 | Dividers and decoration only |
| #1DE4CF text on black | 13.05:1 | AAA | Lc -76.2 | 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
#E8FAF7
oklch(97.1% 0.019 184.9)
-
Step 100
100
#CCF4EC
oklch(93.7% 0.043 181.9)
-
Step 200
200
#9CEBDE
oklch(88.5% 0.08 183)
-
Step 300
300 (this color)
#1DE4CF
oklch(82.7% 0.144 183)
-
Step 400
400
#00BAA8
oklch(70.8% 0.126 182.8)
-
Step 500
500
#009F90
oklch(63.1% 0.112 183.2)
-
Step 600
600
#008679
oklch(55.7% 0.099 183.1)
-
Step 700
700
#007065
oklch(49% 0.087 183.1)
-
Step 800
800
#005C53
oklch(42.6% 0.076 183.4)
-
Step 900
900
#004D45
oklch(37.7% 0.067 183.1)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#1DE4CF 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) | #D9D6CE | 0.153 |
| Deuteranopia (no green cones) | #C0C4D1 | 0.145 |
| Tritanopia (no blue cones) | #00E9DD | 0.020 |
| Achromatopsia (no color) | #CCCCCC | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1DE4CF
#1DE4CF
oklch(82.7% 0.144 183)
- #FFAAC0
#FFAAC0
oklch(82.7% 0.103 2.7)
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 #1DE4CF, closest first.
No curated palette has a color within ΔE 0.04 of #1DE4CF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.015
- Aqua Marine #2EE8BB ΔE 0.033
- Medium Turquoise #48D1CC ΔE 0.052
- Aqua Blue #02D8E9 ΔE 0.058
- Bright Aqua #0BF9EA ΔE 0.060
- Seafoam Blue #78D1B6 ΔE 0.061
- Bright Teal #01F9C6 ΔE 0.064
- Dark Turquoise #00CED1 ΔE 0.065
Use #1DE4CF 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.