#33C271
Closest named color: Algae Green (#21C36F). oklch(72.1% 0.167 153.3), rgb(51, 194, 113).
Aa
Black text reads best on this color (9.09:1).
About this color
#33C271 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.167 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.008 away. Black text reads best on it, at 9.09:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.09:1 |
| White text | 2.30:1 |
Values
| HEX | #33C271 |
| RGB | rgb(51, 194, 113) |
| HSL | hsl(146, 58%, 48%) |
| OKLCH | oklch(72.1% 0.167 153.3) |
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 #33C271 | 2.30:1 | Fails | Lc -49.9 | Large or bold text, headings |
| Black text on #33C271 | 9.09:1 | AAA | Lc 58.9 | Large or bold text, headings |
| #33C271 text on white | 2.30:1 | Fails | Lc 45.1 | Large or bold text, headings |
| #33C271 text on black | 9.09:1 | AAA | Lc -57.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DBF0E1
oklch(93.6% 0.03 154.7)
-
Step 200
200
#BDE5C8
oklch(88.5% 0.058 153.6)
-
Step 300
300
#8AD5A1
oklch(81% 0.105 153.3)
-
Step 400
400 (this color)
#33C271
oklch(72.1% 0.167 153.3)
-
Step 500
500
#00A458
oklch(63% 0.161 153.3)
-
Step 600
600
#008A49
oklch(55.5% 0.142 153.3)
-
Step 700
700
#00743D
oklch(49% 0.125 153.5)
-
Step 800
800
#005F31
oklch(42.6% 0.108 153.6)
-
Step 900
900
#005028
oklch(37.8% 0.097 153.4)
-
Step 950
950
#003015
oklch(27.1% 0.07 152.9)
#33C271 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) | #C2B26B | 0.145 |
| Deuteranopia (no green cones) | #B1A676 | 0.142 |
| Tritanopia (no blue cones) | #00BFAE | 0.086 |
| Achromatopsia (no color) | #ABABAB | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33C271
#33C271
oklch(72.1% 0.167 153.3)
- #E179D1
#E179D1
oklch(72.1% 0.167 333.2)
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 #33C271, closest first.
No curated palette has a color within ΔE 0.04 of #33C271.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.008
- Dark Mint Green #20C073 ΔE 0.010
- Dark Mint #48C072 ΔE 0.012
- Cool Green #33B864 ΔE 0.029
- Greenblue #23C48B ΔE 0.032
- Green Blue #01C08D ΔE 0.039
- Seaweed #18D17B ΔE 0.040
- Soft Green #6FC276 ΔE 0.043
Use #33C271 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.