#45B181
Closest named color: Dark Seafoam Green (#3EAF76). oklch(68.5% 0.123 161.1), rgb(69, 177, 129).
Aa
Black text reads best on this color (7.85:1).
About this color
#45B181 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.123 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.016 away. Black text reads best on it, at 7.85:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.85:1 |
| White text | 2.67:1 |
Values
| HEX | #45B181 |
| RGB | rgb(69, 177, 129) |
| HSL | hsl(153, 44%, 48%) |
| OKLCH | oklch(68.5% 0.123 161.1) |
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 #45B181 | 2.67:1 | Fails | Lc -56.8 | Large or bold text, headings |
| Black text on #45B181 | 7.85:1 | AAA | Lc 52.4 | Large or bold text, headings |
| #45B181 text on white | 2.67:1 | Fails | Lc 51.6 | Large or bold text, headings |
| #45B181 text on black | 7.85:1 | AAA | Lc -50.2 | 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
#F0F8F3
oklch(97.2% 0.011 158.8)
-
Step 100
100
#DEEFE5
oklch(93.7% 0.022 160.2)
-
Step 200
200
#C2E2D0
oklch(88.5% 0.042 160.8)
-
Step 300
300
#94D0B1
oklch(80.8% 0.076 161.6)
-
Step 400
400 (this color)
#45B181
oklch(68.5% 0.123 161.1)
-
Step 500
500
#00A36D
oklch(63.2% 0.141 160.9)
-
Step 600
600
#00895B
oklch(55.6% 0.124 161)
-
Step 700
700
#00734C
oklch(49.1% 0.109 161.2)
-
Step 800
800
#005E3E
oklch(42.6% 0.094 161.6)
-
Step 900
900
#004F33
oklch(37.8% 0.084 161.3)
-
Step 950
950
#002F1D
oklch(27% 0.059 161.7)
#45B181 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) | #AFA57E | 0.117 |
| Deuteranopia (no green cones) | #A09A84 | 0.114 |
| Tritanopia (no blue cones) | #06B1A4 | 0.051 |
| Achromatopsia (no color) | #9E9E9E | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45B181
#45B181
oklch(68.5% 0.123 161.1)
- #CD7AB0
#CD7AB0
oklch(68.5% 0.123 341.4)
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 #45B181, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.016
- Bluey Green #2BB179 ΔE 0.019
- Dark Seafoam #1FB57A ΔE 0.025
- Medium Sea Green #3CB371 ΔE 0.026
- Greeny Blue #42B395 ΔE 0.027
- Tea #65AB7C ΔE 0.027
- Algae #54AC68 ΔE 0.031
- Green Teal #0CB577 ΔE 0.031
Use #45B181 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.