#256D53
Closest named color: Dark Green Blue (#1F6357). oklch(48.2% 0.083 165.7), rgb(37, 109, 83).
Aa
White text reads best on this color (6.19:1).
About this color
#256D53 is a medium-dark, moderately saturated green. In OKLCH its lightness is 48%, its chroma 0.083 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.036 away. White text reads best on it, at 6.19:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.39:1 |
| White text | 6.19:1 |
Values
| HEX | #256D53 |
| RGB | rgb(37, 109, 83) |
| HSL | hsl(158, 49%, 29%) |
| OKLCH | oklch(48.2% 0.083 165.7) |
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 #256D53 | 6.19:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #256D53 | 3.39:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #256D53 text on white | 6.19:1 | AA | Lc 80.6 | Fine for body text |
| #256D53 text on black | 3.39:1 | AA large text | Lc -21.2 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CCDED6
oklch(88.5% 0.022 167.4)
-
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
#55997E
oklch(63% 0.081 166.2)
-
Step 600
600
#378467
oklch(55.7% 0.089 165.7)
-
Step 700
700 (this color)
#256D53
oklch(48.2% 0.083 165.7)
-
Step 800
800
#235B46
oklch(42.7% 0.069 165.7)
-
Step 900
900
#224B3B
oklch(37.8% 0.054 165.9)
-
Step 950
950
#152C22
oklch(27.1% 0.035 164.2)
#256D53 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) | #6B6552 | 0.083 |
| Deuteranopia (no green cones) | #615E55 | 0.080 |
| Tritanopia (no blue cones) | #006D66 | 0.031 |
| Achromatopsia (no color) | #616161 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #256D53
#256D53
oklch(48.2% 0.083 165.7)
- #804A68
#804A68
oklch(48.2% 0.084 346.2)
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 #256D53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.044
- Dark Aqua #05696B ΔE 0.045
- Deep Turquoise #017374 ΔE 0.049
- Pine #2B5D34 ΔE 0.057
- Spruce #0A5F38 ΔE 0.058
- Bluegreen #017A79 ΔE 0.060
- Dark Olive Green #556B2F ΔE 0.060
Use #256D53 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.