#1B633B
Closest named color: Spruce (#0A5F38). oklch(44.5% 0.096 154.6), rgb(27, 99, 59).
Aa
White text reads best on this color (7.25:1).
About this color
#1B633B is a dark, moderately saturated green. In OKLCH its lightness is 44%, its chroma 0.096 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.017 away. White text reads best on it, at 7.25:1.
| Hue family | Greens |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.89:1 |
| White text | 7.25:1 |
Values
| HEX | #1B633B |
| RGB | rgb(27, 99, 59) |
| HSL | hsl(147, 57%, 25%) |
| OKLCH | oklch(44.5% 0.096 154.6) |
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 #1B633B | 7.25:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #1B633B | 2.89:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #1B633B text on white | 7.25:1 | AAA | Lc 84.9 | Fine for body text |
| #1B633B text on black | 2.89:1 | Fails | Lc -17.1 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CAE0D0
oklch(88.6% 0.032 154.1)
-
Step 300
300
#A5CCB1
oklch(80.9% 0.056 154.8)
-
Step 400
400
#72B188
oklch(70.6% 0.089 154.9)
-
Step 500
500
#489E6A
oklch(63.2% 0.115 154.7)
-
Step 600
600
#228851
oklch(55.6% 0.125 154.6)
-
Step 700
700
#117342
oklch(49% 0.115 154.9)
-
Step 800
800 (this color)
#1B633B
oklch(44.5% 0.096 154.6)
-
Step 900
900
#1A4D2F
oklch(37.7% 0.075 154.5)
-
Step 950
950
#112D1C
oklch(27% 0.047 154.9)
#1B633B 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) | #635B38 | 0.085 |
| Deuteranopia (no green cones) | #5A543E | 0.084 |
| Tritanopia (no blue cones) | #006259 | 0.048 |
| Achromatopsia (no color) | #575757 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B633B
#1B633B
oklch(44.5% 0.096 154.6)
- #743E69
#743E69
oklch(44.6% 0.096 335.1)
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 #1B633B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.017
- Pine #2B5D34 ΔE 0.020
- Dark Green Blue #1F6357 ΔE 0.044
- Army Green #4B5D16 ΔE 0.053
- Camouflage Green #4B6113 ΔE 0.054
- Deep Green #02590F ΔE 0.057
- Dark Green #006400 ΔE 0.059
- Navy Green #35530A ΔE 0.059
Use #1B633B 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.