#33D1DB
Closest named color: Dark Turquoise (#00CED1). oklch(78.8% 0.124 201.5), rgb(51, 209, 219).
Aa
Black text reads best on this color (11.28:1).
About this color
#33D1DB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 79%, its chroma 0.124 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Turquoise (#00CED1), ΔE 0.020 away. Black text reads best on it, at 11.28:1.
| Hue family | Teals and cyans |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Dark Turquoise (#00CED1) |
| Black text | 11.28:1 |
| White text | 1.86:1 |
Values
| HEX | #33D1DB |
| RGB | rgb(51, 209, 219) |
| HSL | hsl(184, 70%, 53%) |
| OKLCH | oklch(78.8% 0.124 201.5) |
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 #33D1DB | 1.86:1 | Fails | Lc -38.8 | Non-text elements, placeholder text |
| Black text on #33D1DB | 11.28:1 | AAA | Lc 69.2 | Content text, not long reading |
| #33D1DB text on white | 1.86:1 | Fails | Lc 34.7 | Non-text elements, placeholder text |
| #33D1DB text on black | 11.28:1 | AAA | Lc -67.9 | 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
#E9F9FA
oklch(97.1% 0.017 201.4)
-
Step 100
100
#CFF2F4
oklch(93.7% 0.036 200.8)
-
Step 200
200
#A2E7EC
oklch(88.4% 0.069 201.7)
-
Step 300
300 (this color)
#33D1DB
oklch(78.8% 0.124 201.5)
-
Step 400
400
#00B6C0
oklch(70.7% 0.12 201.8)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#33D1DB 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) | #C1C8DC | 0.126 |
| Deuteranopia (no green cones) | #AAB7DC | 0.116 |
| Tritanopia (no blue cones) | #00D9D4 | 0.029 |
| Achromatopsia (no color) | #BEBEBE | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33D1DB
#33D1DB
oklch(78.8% 0.124 201.5)
- #FF9997
#FF9997
oklch(78.8% 0.123 21.4)
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 #33D1DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Turquoise #00CED1 ΔE 0.020
- Medium Turquoise #48D1CC ΔE 0.022
- Aqua Blue #02D8E9 ΔE 0.023
- Vivid Sky Blue #4CC9F0 ΔE 0.045
- Turquoise #40E0D0 ΔE 0.051
- Bright Sky Blue #02CCFE ΔE 0.057
- Seafoam Blue #78D1B6 ΔE 0.063
- Sky Blue #87CEEB ΔE 0.066
Use #33D1DB 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.