#37644F
Closest named color: Dark Green Blue (#1F6357). oklch(46.4% 0.061 162.5), rgb(55, 100, 79).
Aa
White text reads best on this color (6.77:1).
About this color
#37644F is a medium-dark, muted green. In OKLCH its lightness is 46%, its chroma 0.061 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.023 away. White text reads best on it, at 6.77:1.
| Hue family | Greens |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.061) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.09:1 |
| White text | 6.77:1 |
Values
| HEX | #37644F |
| RGB | rgb(55, 100, 79) |
| HSL | hsl(152, 29%, 30%) |
| OKLCH | oklch(46.4% 0.061 162.5) |
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 #37644F | 6.77:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #37644F | 3.09:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #37644F text on white | 6.77:1 | AA | Lc 83.3 | Fine for body text |
| #37644F text on black | 3.09:1 | AA large text | Lc -18.7 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#D0DDD6
oklch(88.6% 0.017 162.7)
-
Step 300
300
#B0C7BB
oklch(80.9% 0.03 163)
-
Step 400
400
#87AA98
oklch(70.7% 0.046 162.6)
-
Step 500
500
#68957F
oklch(63.1% 0.059 162.9)
-
Step 600
600
#4E8068
oklch(55.7% 0.066 162.4)
-
Step 700
700 (this color)
#37644F
oklch(46.4% 0.061 162.5)
-
Step 800
800
#345847
oklch(42.8% 0.051 162.8)
-
Step 900
900
#2E483B
oklch(37.6% 0.039 162)
-
Step 950
950
#1B2A23
oklch(26.9% 0.024 164.2)
#37644F 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) | #635E4E | 0.060 |
| Deuteranopia (no green cones) | #5C5950 | 0.058 |
| Tritanopia (no blue cones) | #2B645E | 0.025 |
| Achromatopsia (no color) | #5B5B5B | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37644F
#37644F
oklch(46.4% 0.061 162.5)
- #714B62
#714B62
oklch(46.3% 0.061 342.8)
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 #37644F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.023
- Pine #2B5D34 ΔE 0.045
- Dark Aqua #05696B ΔE 0.046
- Spruce #0A5F38 ΔE 0.052
- Petrol #005F6A ΔE 0.059
- Dark Aquamarine #017371 ΔE 0.059
- Camo Green #526525 ΔE 0.060
- Deep Turquoise #017374 ΔE 0.062
Use #37644F 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.