#33B873
Closest named color: Medium Sea Green (#3CB371). oklch(69.5% 0.152 155.6), rgb(51, 184, 115).
Aa
Black text reads best on this color (8.24:1).
About this color
#33B873 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.152 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.014 away. Black text reads best on it, at 8.24:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.24:1 |
| White text | 2.54:1 |
Values
| HEX | #33B873 |
| RGB | rgb(51, 184, 115) |
| HSL | hsl(149, 57%, 46%) |
| OKLCH | oklch(69.5% 0.152 155.6) |
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 #33B873 | 2.54:1 | Fails | Lc -54.6 | Large or bold text, headings |
| Black text on #33B873 | 8.24:1 | AAA | Lc 54.5 | Large or bold text, headings |
| #33B873 text on white | 2.54:1 | Fails | Lc 49.5 | Large or bold text, headings |
| #33B873 text on black | 8.24:1 | AAA | Lc -52.5 | 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
#EFF8F2
oklch(97.1% 0.012 157)
-
Step 100
100
#DCF0E2
oklch(93.6% 0.028 155.3)
-
Step 200
200
#BEE4CB
oklch(88.5% 0.052 156.4)
-
Step 300
300
#8DD3A7
oklch(80.8% 0.094 156)
-
Step 400
400 (this color)
#33B873
oklch(69.5% 0.152 155.6)
-
Step 500
500
#00A45F
oklch(63.2% 0.155 155.5)
-
Step 600
600
#008A4F
oklch(55.7% 0.136 155.4)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#003018
oklch(27.2% 0.067 155.5)
#33B873 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) | #B7A96E | 0.136 |
| Deuteranopia (no green cones) | #A79E78 | 0.133 |
| Tritanopia (no blue cones) | #00B6A6 | 0.073 |
| Achromatopsia (no color) | #A2A2A2 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33B873
#33B873
oklch(69.5% 0.152 155.6)
- #D675C1
#D675C1
oklch(69.5% 0.152 335.7)
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 #33B873, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.014
- Dark Seafoam #1FB57A ΔE 0.016
- Green Teal #0CB577 ΔE 0.017
- Cool Green #33B864 ΔE 0.019
- Dark Mint Green #20C073 ΔE 0.023
- Bluey Green #2BB179 ΔE 0.025
- Jade Green #2BAF6A ΔE 0.027
- Dark Seafoam Green #3EAF76 ΔE 0.028
Use #33B873 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.