#1B503B
Closest named color: Dark Blue Green (#005249). oklch(38.9% 0.067 163.9), rgb(27, 80, 59).
Aa
White text reads best on this color (9.30:1).
About this color
#1B503B is a dark, muted green. In OKLCH its lightness is 39%, its chroma 0.067 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.023 away. White text reads best on it, at 9.30:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #1B503B |
| RGB | rgb(27, 80, 59) |
| HSL | hsl(156, 50%, 21%) |
| OKLCH | oklch(38.9% 0.067 163.9) |
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 #1B503B | 9.30:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #1B503B | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #1B503B text on white | 9.30:1 | AAA | Lc 91.3 | Preferred for body text |
| #1B503B text on black | 2.25:1 | Fails | Lc -11.1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#C9DFD4
oklch(88.4% 0.028 164.3)
-
Step 300
300
#A4CBB8
oklch(80.9% 0.049 164.1)
-
Step 400
400
#6FB193
oklch(70.7% 0.081 163.8)
-
Step 500
500
#449D78
oklch(63.1% 0.103 163.5)
-
Step 600
600
#198761
oklch(55.5% 0.111 163.9)
-
Step 700
700
#037350
oklch(49.2% 0.105 163.5)
-
Step 800
800
#0D5D42
oklch(42.6% 0.086 164.2)
-
Step 900
900 (this color)
#1B503B
oklch(38.9% 0.067 163.9)
-
Step 950
950
#102D21
oklch(27.1% 0.042 164)
#1B503B 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) | #4E4A3A | 0.065 |
| Deuteranopia (no green cones) | #47453C | 0.063 |
| Tritanopia (no blue cones) | #00504A | 0.026 |
| Achromatopsia (no color) | #474747 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B503B
#1B503B
oklch(38.9% 0.067 163.9)
- #5E364E
#5E364E
oklch(39% 0.067 343.8)
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 #1B503B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.023
- Dark Teal #014D4E ΔE 0.038
- Evergreen #05472A ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.042
- Deep Teal #00555A ΔE 0.049
- Pine Green #0A481E ΔE 0.049
- Pine #2B5D34 ΔE 0.051
- Spruce #0A5F38 ΔE 0.052
Use #1B503B 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.