#33B565
Closest named color: Cool Green (#33B864). oklch(68.5% 0.161 151.8), rgb(51, 181, 101).
Aa
Black text reads best on this color (7.93:1).
About this color
#33B565 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.161 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.009 away. Black text reads best on it, at 7.93:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.161) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 7.93:1 |
| White text | 2.64:1 |
Values
| HEX | #33B565 |
| RGB | rgb(51, 181, 101) |
| HSL | hsl(143, 56%, 45%) |
| OKLCH | oklch(68.5% 0.161 151.8) |
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 #33B565 | 2.64:1 | Fails | Lc -56.2 | Large or bold text, headings |
| Black text on #33B565 | 7.93:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #33B565 text on white | 2.64:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #33B565 text on black | 7.93:1 | AAA | Lc -50.8 | 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
#DCF0E0
oklch(93.6% 0.03 151.5)
-
Step 200
200
#BFE4C7
oklch(88.4% 0.055 151.6)
-
Step 300
300
#8ED4A0
oklch(81% 0.102 151.7)
-
Step 400
400 (this color)
#33B565
oklch(68.5% 0.161 151.8)
-
Step 500
500
#00A553
oklch(63.2% 0.167 151.8)
-
Step 600
600
#008A45
oklch(55.5% 0.146 152)
-
Step 700
700
#007539
oklch(49.2% 0.13 151.8)
-
Step 800
800
#00602D
oklch(42.8% 0.114 151.6)
-
Step 900
900
#005025
oklch(37.8% 0.1 151.8)
-
Step 950
950
#003013
oklch(27.1% 0.072 151.4)
#33B565 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) | #B5A65F | 0.136 |
| Deuteranopia (no green cones) | #A69B6A | 0.134 |
| Tritanopia (no blue cones) | #00B2A2 | 0.086 |
| Achromatopsia (no color) | #9F9F9F | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33B565
#33B565
oklch(68.5% 0.161 151.8)
- #D270C6
#D270C6
oklch(68.5% 0.162 331.9)
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 #33B565, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.009
- Medium Sea Green #3CB371 ΔE 0.019
- Jade Green #2BAF6A ΔE 0.021
- Green Teal #0CB577 ΔE 0.023
- Dark Pastel Green #56AE57 ΔE 0.026
- Dark Seafoam #1FB57A ΔE 0.026
- Seaweed Green #35AD6B ΔE 0.027
- Dark Mint Green #20C073 ΔE 0.031
Use #33B565 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.