#23B878
Closest named color: Dark Seafoam (#1FB57A). oklch(69.3% 0.152 158.5), rgb(35, 184, 120).
Aa
Black text reads best on this color (8.19:1).
About this color
#23B878 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.152 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam (#1FB57A), ΔE 0.010 away. Black text reads best on it, at 8.19:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Dark Seafoam (#1FB57A) |
| Black text | 8.19:1 |
| White text | 2.56:1 |
Values
| HEX | #23B878 |
| RGB | rgb(35, 184, 120) |
| HSL | hsl(154, 68%, 43%) |
| OKLCH | oklch(69.3% 0.152 158.5) |
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 #23B878 | 2.56:1 | Fails | Lc -54.7 | Large or bold text, headings |
| Black text on #23B878 | 8.19:1 | AAA | Lc 54.4 | Large or bold text, headings |
| #23B878 text on white | 2.56:1 | Fails | Lc 49.6 | Large or bold text, headings |
| #23B878 text on black | 8.19:1 | AAA | Lc -52.3 | 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
#DBF0E3
oklch(93.6% 0.028 158.7)
-
Step 200
200
#BDE4CC
oklch(88.4% 0.052 158.1)
-
Step 300
300
#8AD4AA
oklch(81% 0.095 158.5)
-
Step 400
400 (this color)
#23B878
oklch(69.3% 0.152 158.5)
-
Step 500
500
#00A367
oklch(63% 0.146 158.5)
-
Step 600
600
#008956
oklch(55.5% 0.129 158.6)
-
Step 700
700
#007348
oklch(49% 0.113 158.9)
-
Step 800
800
#005F3A
oklch(42.8% 0.099 158.5)
-
Step 900
900
#004F30
oklch(37.7% 0.087 158.9)
-
Step 950
950
#002F1B
oklch(26.9% 0.062 159.3)
#23B878 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) | #B6A974 | 0.141 |
| Deuteranopia (no green cones) | #A59D7C | 0.137 |
| Tritanopia (no blue cones) | #00B7A7 | 0.067 |
| Achromatopsia (no color) | #A2A2A2 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23B878
#23B878
oklch(69.3% 0.152 158.5)
- #D874BC
#D874BC
oklch(69.4% 0.152 338.7)
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 #23B878, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam #1FB57A ΔE 0.010
- Green Teal #0CB577 ΔE 0.011
- Medium Sea Green #3CB371 ΔE 0.015
- Bluey Green #2BB179 ΔE 0.021
- Cool Green #33B864 ΔE 0.025
- Dark Mint Green #20C073 ΔE 0.026
- Dark Seafoam Green #3EAF76 ΔE 0.026
- Jade Green #2BAF6A ΔE 0.027
Use #23B878 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.