#53B378
Closest named color: Medium Sea Green (#3CB371). oklch(69.3% 0.127 154.3), rgb(83, 179, 120).
Aa
Black text reads best on this color (8.08:1).
About this color
#53B378 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.127 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.020 away. Black text reads best on it, at 8.08:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.08:1 |
| White text | 2.59:1 |
Values
| HEX | #53B378 |
| RGB | rgb(83, 179, 120) |
| HSL | hsl(143, 39%, 51%) |
| OKLCH | oklch(69.3% 0.127 154.3) |
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 #53B378 | 2.59:1 | Fails | Lc -55.6 | Large or bold text, headings |
| Black text on #53B378 | 8.08:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #53B378 text on white | 2.59:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #53B378 text on black | 8.08:1 | AAA | Lc -51.4 | 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
#F0F8F2
oklch(97.1% 0.012 153.7)
-
Step 100
100
#DFEFE3
oklch(93.7% 0.023 153.4)
-
Step 200
200
#C4E2CC
oklch(88.5% 0.044 153.6)
-
Step 300
300
#98D0AA
oklch(80.8% 0.079 154.6)
-
Step 400
400 (this color)
#53B378
oklch(69.3% 0.127 154.3)
-
Step 500
500
#00A45B
oklch(63.1% 0.158 154.2)
-
Step 600
600
#008A4C
oklch(55.6% 0.139 154.3)
-
Step 700
700
#00743F
oklch(49.1% 0.123 154.3)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#005029
oklch(37.8% 0.096 153.9)
-
Step 950
950
#012F17
oklch(26.8% 0.066 154.8)
#53B378 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) | #B3A674 | 0.113 |
| Deuteranopia (no green cones) | #A59D7C | 0.109 |
| Tritanopia (no blue cones) | #39B1A4 | 0.064 |
| Achromatopsia (no color) | #A1A1A1 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #53B378
#53B378
oklch(69.3% 0.127 154.3)
- #CC7DBC
#CC7DBC
oklch(69.4% 0.127 334.6)
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 #53B378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.020
- Dark Seafoam Green #3EAF76 ΔE 0.020
- Algae #54AC68 ΔE 0.024
- Boring Green #63B365 ΔE 0.025
- Bluey Green #2BB179 ΔE 0.025
- Dark Seafoam #1FB57A ΔE 0.026
- Tea #65AB7C ΔE 0.029
- Green Teal #0CB577 ΔE 0.031
Use #53B378 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.