#33DEB5
Closest named color: Aqua Marine (#2EE8BB). oklch(80.7% 0.146 171.9), rgb(51, 222, 181).
Aa
Black text reads best on this color (12.25:1).
About this color
#33DEB5 is a light, vivid teal or cyan. In OKLCH its lightness is 81%, its chroma 0.146 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.027 away. Black text reads best on it, at 12.25:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 12.25:1 |
| White text | 1.71:1 |
Values
| HEX | #33DEB5 |
| RGB | rgb(51, 222, 181) |
| HSL | hsl(166, 72%, 54%) |
| OKLCH | oklch(80.7% 0.146 171.9) |
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 #33DEB5 | 1.71:1 | Fails | Lc -34.1 | Non-text elements, placeholder text |
| Black text on #33DEB5 | 12.25:1 | AAA | Lc 73.5 | Content text, not long reading |
| #33DEB5 text on white | 1.71:1 | Fails | Lc 30.3 | Non-text elements, placeholder text |
| #33DEB5 text on black | 12.25:1 | AAA | Lc -72.5 | 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
#E9FAF4
oklch(97.1% 0.02 172.8)
-
Step 100
100
#CFF4E6
oklch(93.7% 0.043 170.5)
-
Step 200
200
#A1EBD3
oklch(88.5% 0.081 172.1)
-
Step 300
300 (this color)
#33DEB5
oklch(80.7% 0.146 171.9)
-
Step 400
400
#00BC97
oklch(70.8% 0.137 171.9)
-
Step 500
500
#00A181
oklch(63.2% 0.122 172)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#002E23
oklch(26.8% 0.052 171.9)
#33DEB5 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) | #D7CFB3 | 0.151 |
| Deuteranopia (no green cones) | #C1BFB8 | 0.145 |
| Tritanopia (no blue cones) | #00E0D2 | 0.039 |
| Achromatopsia (no color) | #C6C6C6 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33DEB5
#33DEB5
oklch(80.7% 0.146 171.9)
- #FF9DC9
#FF9DC9
oklch(80.8% 0.127 351.9)
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 #33DEB5, closest first.
No curated palette has a color within ΔE 0.04 of #33DEB5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.027
- Emerald #06D6A0 ΔE 0.036
- Turquoise #40E0D0 ΔE 0.038
- Medium Aquamarine #66CDAA ΔE 0.048
- Aqua Green #12E193 ΔE 0.051
- Seafoam Blue #78D1B6 ΔE 0.052
- Medium Turquoise #48D1CC ΔE 0.057
- Pale Teal #82CBB2 ΔE 0.068
Use #33DEB5 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.