#1B552E
Closest named color: Spruce (#0A5F38). oklch(40.1% 0.089 151), rgb(27, 85, 46).
Aa
White text reads best on this color (8.80:1).
About this color
#1B552E is a dark, moderately saturated green. In OKLCH its lightness is 40%, its chroma 0.089 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.031 away. White text reads best on it, at 8.80:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.38:1 |
| White text | 8.80:1 |
Values
| HEX | #1B552E |
| RGB | rgb(27, 85, 46) |
| HSL | hsl(140, 52%, 22%) |
| OKLCH | oklch(40.1% 0.089 151) |
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 #1B552E | 8.80:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #1B552E | 2.38:1 | Fails | Lc 14.1 | Not readable |
| #1B552E text on white | 8.80:1 | AAA | Lc 89.9 | Fine for body text |
| #1B552E text on black | 2.38:1 | Fails | Lc -12.4 | Not readable |
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 900.
-
Step 50
50
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C8E1CD
oklch(88.6% 0.038 151.3)
-
Step 300
300
#A2CDAB
oklch(80.8% 0.066 151)
-
Step 400
400
#6CB47E
oklch(70.8% 0.107 150.9)
-
Step 500
500
#3EA05D
oklch(63.1% 0.136 150.9)
-
Step 600
600
#078A43
oklch(55.5% 0.147 151.1)
-
Step 700
700
#007536
oklch(49.2% 0.133 150.8)
-
Step 800
800
#03602C
oklch(42.8% 0.114 150.9)
-
Step 900
900 (this color)
#1B552E
oklch(40.1% 0.089 151)
-
Step 950
950
#0E2E18
oklch(27% 0.056 151.2)
#1B552E 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) | #554E2B | 0.073 |
| Deuteranopia (no green cones) | #4E4831 | 0.074 |
| Tritanopia (no blue cones) | #06544B | 0.046 |
| Achromatopsia (no color) | #4A4A4A | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B552E
#1B552E
oklch(40.1% 0.089 151)
- #63345E
#63345E
oklch(40.1% 0.09 331.1)
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 #1B552E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.031
- Pine #2B5D34 ΔE 0.032
- Navy Green #35530A ΔE 0.037
- Forest #0B5509 ΔE 0.041
- Deep Green #02590F ΔE 0.043
- Dark Blue Green #005249 ΔE 0.047
- Pine Green #0A481E ΔE 0.048
- Evergreen #05472A ΔE 0.051
Use #1B552E 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.