#1B2B1F
Closest named color: Jet (#212529). oklch(27.1% 0.031 151.7), rgb(27, 43, 31).
Aa
White text reads best on this color (14.87:1).
About this color
#1B2B1F is a dark, muted green. In OKLCH its lightness is 27%, its chroma 0.031 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jet (#212529), ΔE 0.034 away. White text reads best on it, at 14.87:1.
| Hue family | Greens |
| Lightness | dark (27%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Jet (#212529) |
| Black text | 1.41:1 |
| White text | 14.87:1 |
Values
| HEX | #1B2B1F |
| RGB | rgb(27, 43, 31) |
| HSL | hsl(135, 23%, 14%) |
| OKLCH | oklch(27.1% 0.031 151.7) |
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 #1B2B1F | 14.87:1 | AAA | Lc -104.5 | Preferred for body text |
| Black text on #1B2B1F | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #1B2B1F text on white | 14.87:1 | AAA | Lc 101.7 | Preferred for body text |
| #1B2B1F text on black | 1.41:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE6
oklch(93.6% 0.011 149.9)
-
Step 200
200
#D0DDD3
oklch(88.5% 0.019 152.8)
-
Step 300
300
#B0C8B5
oklch(80.9% 0.037 151.6)
-
Step 400
400
#86AC8F
oklch(70.8% 0.059 151.9)
-
Step 500
500
#679773
oklch(63.2% 0.075 151.6)
-
Step 600
600
#4D815B
oklch(55.6% 0.081 151.6)
-
Step 700
700
#3E6D4B
oklch(49.1% 0.075 151.7)
-
Step 800
800
#33593E
oklch(42.7% 0.063 152.3)
-
Step 900
900
#2D4935
oklch(37.7% 0.048 152.6)
-
Step 950
950 (this color)
#1B2B1F
oklch(27.1% 0.031 151.7)
#1B2B1F 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) | #2B281E | 0.027 |
| Deuteranopia (no green cones) | #292720 | 0.026 |
| Tritanopia (no blue cones) | #192A28 | 0.018 |
| Achromatopsia (no color) | #272727 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B2B1F
#1B2B1F
oklch(27.1% 0.031 151.7)
- #30212D
#30212D
oklch(27.1% 0.031 333.6)
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 #1B2B1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.034
- Dark #1B2431 ΔE 0.049
- Pakistan Green #283618 ΔE 0.049
- Very Dark Green #062E03 ΔE 0.053
- Dark Forest Green #002D04 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.061
- Dark Brown #341C02 ΔE 0.063
- Gunmetal #293241 ΔE 0.067
Use #1B2B1F 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.