#33DFFF
Closest named color: Aqua Blue (#02D8E9). oklch(83.4% 0.138 214), rgb(51, 223, 255).
Aa
Black text reads best on this color (13.13:1).
About this color
#33DFFF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.138 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.036 away. Black text reads best on it, at 13.13:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 13.13:1 |
| White text | 1.59:1 |
Values
| HEX | #33DFFF |
| RGB | rgb(51, 223, 255) |
| HSL | hsl(189, 100%, 60%) |
| OKLCH | oklch(83.4% 0.138 214) |
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 #33DFFF | 1.59:1 | Fails | Lc -30.0 | Dividers and decoration only |
| Black text on #33DFFF | 13.13:1 | AAA | Lc 77.3 | Fine for body text |
| #33DFFF text on white | 1.59:1 | Fails | Lc 26.5 | Dividers and decoration only |
| #33DFFF text on black | 13.13:1 | AAA | Lc -76.5 | 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
#E8F9FD
oklch(97.1% 0.019 213.4)
-
Step 100
100
#CDF1FA
oklch(93.5% 0.039 214.5)
-
Step 200
200
#9DE7F8
oklch(88.5% 0.077 213.7)
-
Step 300
300 (this color)
#33DFFF
oklch(83.4% 0.138 214)
-
Step 400
400
#00B4D0
oklch(70.8% 0.124 214)
-
Step 500
500
#009AB2
oklch(63.1% 0.111 213.9)
-
Step 600
600
#008196
oklch(55.5% 0.098 214.4)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900
#004A57
oklch(37.6% 0.066 214.5)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#33DFFF 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) | #C8D8FF | 0.124 |
| Deuteranopia (no green cones) | #ADC4FF | 0.112 |
| Tritanopia (no blue cones) | #00EBE9 | 0.053 |
| Achromatopsia (no color) | #CCCCCC | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33DFFF
#33DFFF
oklch(83.4% 0.138 214)
- #FFB3A1
#FFB3A1
oklch(83.4% 0.093 33.8)
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 #33DFFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.036
- Robin's Egg #6DEDFD ΔE 0.054
- Bright Sky Blue #02CCFE ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.058
- Sky Blue #87CEEB ΔE 0.063
- Light Sky Blue #87CEFA ΔE 0.064
- Bright Light Blue #26F7FD ΔE 0.067
- Lightblue #7BC8F6 ΔE 0.068
Use #33DFFF 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.