#1B543F
Closest named color: Dark Blue Green (#005249). oklch(40.2% 0.069 165.3), rgb(27, 84, 63).
Aa
White text reads best on this color (8.79:1).
About this color
#1B543F is a dark, muted green. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.022 away. White text reads best on it, at 8.79:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #1B543F |
| RGB | rgb(27, 84, 63) |
| HSL | hsl(158, 51%, 22%) |
| OKLCH | oklch(40.2% 0.069 165.3) |
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 #1B543F | 8.79:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #1B543F | 2.38:1 | Fails | Lc 14.1 | Not readable |
| #1B543F text on white | 8.79:1 | AAA | Lc 89.9 | Fine for body text |
| #1B543F 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 800.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CCDED5
oklch(88.5% 0.023 164.5)
-
Step 300
300
#A9C9BA
oklch(80.8% 0.04 165.4)
-
Step 400
400
#7AAE97
oklch(70.8% 0.065 165.4)
-
Step 500
500
#559A7D
oklch(63.2% 0.084 164.8)
-
Step 600
600
#368466
oklch(55.6% 0.091 165.1)
-
Step 700
700
#287055
oklch(49.2% 0.084 165)
-
Step 800
800 (this color)
#1B543F
oklch(40.2% 0.069 165.3)
-
Step 900
900
#224B3A
oklch(37.8% 0.055 164.4)
-
Step 950
950
#152C22
oklch(27.1% 0.035 164.2)
#1B543F 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) | #524E3E | 0.068 |
| Deuteranopia (no green cones) | #4A4840 | 0.066 |
| Tritanopia (no blue cones) | #00544E | 0.026 |
| Achromatopsia (no color) | #4A4A4A | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B543F
#1B543F
oklch(40.2% 0.069 165.3)
- #633851
#633851
oklch(40.2% 0.07 344.9)
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 #1B543F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.022
- Pine #2B5D34 ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.042
- Spruce #0A5F38 ΔE 0.042
- Dark Teal #014D4E ΔE 0.042
- Deep Teal #00555A ΔE 0.044
- Evergreen #05472A ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.054
Use #1B543F 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.