#277C01
Closest named color: Tree Green (#2A7E19). oklch(51.5% 0.164 139.5), rgb(39, 124, 1).
Aa
White text reads best on this color (5.28:1).
About this color
#277C01 is a medium-dark, vivid green. In OKLCH its lightness is 51%, its chroma 0.164 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.011 away. White text reads best on it, at 5.28:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.164) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 3.96:1 |
| White text | 5.28:1 |
Values
| HEX | #277C01 |
| RGB | rgb(39, 124, 1) |
| HSL | hsl(101, 98%, 25%) |
| OKLCH | oklch(51.5% 0.164 139.5) |
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 #277C01 | 5.28:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #277C01 | 3.96:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #277C01 text on white | 5.28:1 | AA | Lc 75.8 | Fine for body text |
| #277C01 text on black | 3.96:1 | AA large text | Lc -25.9 | 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 700.
-
Step 50
50
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CBE1C5
oklch(88.6% 0.044 139)
-
Step 300
300
#A6CE9D
oklch(81% 0.08 139.9)
-
Step 400
400
#75B465
oklch(70.8% 0.128 139.5)
-
Step 500
500
#4EA037
oklch(63.2% 0.162 139.5)
-
Step 600
600
#2D8A03
oklch(55.6% 0.176 139.5)
-
Step 700
700 (this color)
#277C01
oklch(51.5% 0.164 139.5)
-
Step 800
800
#1C5F01
oklch(42.6% 0.135 139.5)
-
Step 900
900
#1E4E10
oklch(37.7% 0.105 139.6)
-
Step 950
950
#132E0B
oklch(27% 0.067 139.2)
#277C01 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) | #807000 | 0.110 |
| Deuteranopia (no green cones) | #766917 | 0.108 |
| Tritanopia (no blue cones) | #197768 | 0.111 |
| Achromatopsia (no color) | #6B6B6B | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #277C01
#277C01
oklch(51.5% 0.164 139.5)
- #8E41A1
#8E41A1
oklch(51.5% 0.163 319.3)
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 #277C01, closest first.
No curated palette has a color within ΔE 0.04 of #277C01.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.011
- Green #008000 ΔE 0.017
- Dark Grass Green #388004 ΔE 0.019
- Forest Green #228B22 ΔE 0.044
- Jungle Green #048243 ΔE 0.047
- Emerald Green #028F1E ΔE 0.055
- Olive Green #677A04 ΔE 0.068
- Kelley Green #009337 ΔE 0.068
Use #277C01 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.