#051B01
Closest named color: Dark Forest Green (#002D04). oklch(19.6% 0.059 139.2), rgb(5, 27, 1).
Aa
White text reads best on this color (18.04:1).
About this color
#051B01 is a very dark, muted green. In OKLCH its lightness is 20%, its chroma 0.059 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.067 away. White text reads best on it, at 18.04:1.
| Hue family | Greens |
| Lightness | very dark (20%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.16:1 |
| White text | 18.04:1 |
Values
| HEX | #051B01 |
| RGB | rgb(5, 27, 1) |
| HSL | hsl(111, 93%, 5%) |
| OKLCH | oklch(19.6% 0.059 139.2) |
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 #051B01 | 18.04:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #051B01 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #051B01 text on white | 18.04:1 | AAA | Lc 104.6 | Preferred for body text |
| #051B01 text on black | 1.16:1 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EDE1
oklch(93.5% 0.019 140.5)
-
Step 200
200
#CDE0C7
oklch(88.6% 0.039 138.2)
-
Step 300
300
#AACCA1
oklch(80.9% 0.07 139.2)
-
Step 400
400
#7BB16D
oklch(70.6% 0.111 139.3)
-
Step 500
500
#589D44
oklch(63% 0.142 139.1)
-
Step 600
600
#3B8822
oklch(55.7% 0.155 139.3)
-
Step 700
700
#2D7313
oklch(49.2% 0.144 139.1)
-
Step 800
800
#265E14
oklch(42.8% 0.12 139.3)
-
Step 900
900
#244D19
oklch(37.7% 0.093 139.5)
-
Step 950
950 (this color)
#051B01
oklch(19.6% 0.059 139.2)
#051B01 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) | #1C1700 | 0.039 |
| Deuteranopia (no green cones) | #191602 | 0.037 |
| Tritanopia (no blue cones) | #031A15 | 0.039 |
| Achromatopsia (no color) | #161616 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051B01
#051B01
oklch(19.6% 0.059 139.2)
- #200B26
#200B26
oklch(19.7% 0.058 318.3)
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 #051B01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.067
- Rich Navy #001219 ΔE 0.069
- Almost Black #070D0D ΔE 0.070
- Very Dark Green #062E03 ΔE 0.071
- Rich Black #0D1B2A ΔE 0.082
- Dark Brown #341C02 ΔE 0.089
- Jet #212529 ΔE 0.091
- Dark #1B2431 ΔE 0.098
Use #051B01 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.