#1F644D
Closest named color: Dark Green Blue (#1F6357). oklch(45.3% 0.079 167.1), rgb(31, 100, 77).
Aa
White text reads best on this color (7.02:1).
About this color
#1F644D is a medium-dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.079 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.018 away. White text reads best on it, at 7.02:1.
| Hue family | Greens |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.98:1 |
| White text | 7.02:1 |
Values
| HEX | #1F644D |
| RGB | rgb(31, 100, 77) |
| HSL | hsl(160, 53%, 26%) |
| OKLCH | oklch(45.3% 0.079 167.1) |
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 #1F644D | 7.02:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #1F644D | 2.98:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #1F644D text on white | 7.02:1 | AAA | Lc 84.1 | Fine for body text |
| #1F644D text on black | 2.98:1 | Fails | Lc -17.9 | 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 800.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD6
oklch(88.5% 0.026 168.2)
-
Step 300
300
#A5CBBA
oklch(81% 0.047 166.2)
-
Step 400
400
#72B097
oklch(70.8% 0.074 166.9)
-
Step 500
500
#499C7E
oklch(63.2% 0.094 167.2)
-
Step 600
600
#238667
oklch(55.6% 0.102 167.4)
-
Step 700
700
#137155
oklch(49% 0.094 167.1)
-
Step 800
800 (this color)
#1F644D
oklch(45.3% 0.079 167.1)
-
Step 900
900
#1A4C3B
oklch(37.7% 0.061 167.5)
-
Step 950
950
#112C22
oklch(26.8% 0.038 167)
#1F644D 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) | #625D4C | 0.079 |
| Deuteranopia (no green cones) | #58564F | 0.076 |
| Tritanopia (no blue cones) | #00645E | 0.028 |
| Achromatopsia (no color) | #595959 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F644D
#1F644D
oklch(45.3% 0.079 167.1)
- #76435F
#76435F
oklch(45.3% 0.08 346.7)
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 #1F644D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.018
- Pine #2B5D34 ΔE 0.036
- Spruce #0A5F38 ΔE 0.036
- Dark Aqua #05696B ΔE 0.045
- Petrol #005F6A ΔE 0.056
- Dark Aquamarine #017371 ΔE 0.061
- Deep Teal #00555A ΔE 0.063
- Dark Blue Green #005249 ΔE 0.064
Use #1F644D 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.