#33B685
Closest named color: Dark Seafoam (#1FB57A). oklch(69.4% 0.134 163.4), rgb(51, 182, 133).
Aa
Black text reads best on this color (8.17:1).
About this color
#33B685 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.134 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam (#1FB57A), ΔE 0.018 away. Black text reads best on it, at 8.17:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Dark Seafoam (#1FB57A) |
| Black text | 8.17:1 |
| White text | 2.57:1 |
Values
| HEX | #33B685 |
| RGB | rgb(51, 182, 133) |
| HSL | hsl(158, 56%, 46%) |
| OKLCH | oklch(69.4% 0.134 163.4) |
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 #33B685 | 2.57:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #33B685 | 8.17:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #33B685 text on white | 2.57:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #33B685 text on black | 8.17:1 | AAA | Lc -52.1 | 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
#EFF8F3
oklch(97.1% 0.012 162.1)
-
Step 100
100
#DCEFE5
oklch(93.5% 0.024 163.1)
-
Step 200
200
#BEE3D1
oklch(88.4% 0.046 164.4)
-
Step 300
300
#8DD2B2
oklch(80.9% 0.083 163.8)
-
Step 400
400 (this color)
#33B685
oklch(69.4% 0.134 163.4)
-
Step 500
500
#00A272
oklch(63% 0.135 163.5)
-
Step 600
600
#00885F
oklch(55.5% 0.119 163.5)
-
Step 700
700
#00734F
oklch(49.1% 0.106 163)
-
Step 800
800
#005E40
oklch(42.6% 0.092 163.1)
-
Step 900
900
#004F35
oklch(37.8% 0.082 162.9)
-
Step 950
950
#002F1E
oklch(27% 0.058 163)
#33B685 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) | #B3A982 | 0.130 |
| Deuteranopia (no green cones) | #A29D88 | 0.125 |
| Tritanopia (no blue cones) | #00B6A9 | 0.051 |
| Achromatopsia (no color) | #A1A1A1 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33B685
#33B685
oklch(69.4% 0.134 163.4)
- #D579B2
#D579B2
oklch(69.4% 0.133 343.2)
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 #33B685, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam #1FB57A ΔE 0.018
- Bluey Green #2BB179 ΔE 0.020
- Dark Seafoam Green #3EAF76 ΔE 0.023
- Green Teal #0CB577 ΔE 0.024
- Medium Sea Green #3CB371 ΔE 0.025
- Green Blue #01C08D ΔE 0.028
- Greeny Blue #42B395 ΔE 0.029
- Seaweed Green #35AD6B ΔE 0.037
Use #33B685 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.