#155E48
Closest named color: Spruce (#0A5F38). oklch(43.2% 0.079 168.1), rgb(21, 94, 72).
Aa
White text reads best on this color (7.70:1).
About this color
#155E48 is a dark, moderately saturated green. In OKLCH its lightness is 43%, its chroma 0.079 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.027 away. White text reads best on it, at 7.70:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.72:1 |
| White text | 7.70:1 |
Values
| HEX | #155E48 |
| RGB | rgb(21, 94, 72) |
| HSL | hsl(162, 63%, 23%) |
| OKLCH | oklch(43.2% 0.079 168.1) |
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 #155E48 | 7.70:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #155E48 | 2.72:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #155E48 text on white | 7.70:1 | AAA | Lc 86.4 | Fine for body text |
| #155E48 text on black | 2.72:1 | Fails | Lc -15.6 | Dividers and decoration only |
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 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD6
oklch(88.5% 0.026 168.2)
-
Step 300
300
#A5CBBB
oklch(81% 0.046 167.7)
-
Step 400
400
#71B098
oklch(70.7% 0.074 168.2)
-
Step 500
500
#479C7F
oklch(63.2% 0.094 168.3)
-
Step 600
600
#208668
oklch(55.6% 0.102 168.4)
-
Step 700
700
#0F7256
oklch(49.2% 0.096 167.6)
-
Step 800
800 (this color)
#155E48
oklch(43.2% 0.079 168.1)
-
Step 900
900
#194C3B
oklch(37.7% 0.062 167.8)
-
Step 950
950
#112D23
oklch(27.2% 0.039 167.7)
#155E48 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) | #5B5747 | 0.079 |
| Deuteranopia (no green cones) | #525049 | 0.077 |
| Tritanopia (no blue cones) | #005E58 | 0.026 |
| Achromatopsia (no color) | #535353 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155E48
#155E48
oklch(43.2% 0.079 168.1)
- #703D58
#703D58
oklch(43.2% 0.08 348)
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 #155E48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.027
- Pine #2B5D34 ΔE 0.030
- Dark Blue Green #005249 ΔE 0.044
- Deep Teal #00555A ΔE 0.050
- Petrol #005F6A ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.057
- Dark Aqua #05696B ΔE 0.057
Use #155E48 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.