#1F644B
Closest named color: Dark Green Blue (#1F6357). oklch(45.3% 0.08 165.2), rgb(31, 100, 75).
Aa
White text reads best on this color (7.04:1).
About this color
#1F644B is a medium-dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.080 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.021 away. White text reads best on it, at 7.04:1.
| Hue family | Greens |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.98:1 |
| White text | 7.04:1 |
Values
| HEX | #1F644B |
| RGB | rgb(31, 100, 75) |
| HSL | hsl(158, 53%, 26%) |
| OKLCH | oklch(45.3% 0.08 165.2) |
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 #1F644B | 7.04:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #1F644B | 2.98:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #1F644B text on white | 7.04:1 | AAA | Lc 84.1 | Fine for body text |
| #1F644B text on black | 2.98:1 | Fails | Lc -17.8 | 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
#CADFD5
oklch(88.5% 0.026 165.6)
-
Step 300
300
#A5CBB9
oklch(80.9% 0.048 164.8)
-
Step 400
400
#72B095
oklch(70.7% 0.076 165.1)
-
Step 500
500
#499C7B
oklch(63.1% 0.096 165)
-
Step 600
600
#248664
oklch(55.5% 0.104 165.2)
-
Step 700
700
#137253
oklch(49.2% 0.097 165.1)
-
Step 800
800 (this color)
#1F644B
oklch(45.3% 0.08 165.2)
-
Step 900
900
#1B4C39
oklch(37.7% 0.063 164.7)
-
Step 950
950
#112D22
oklch(27.1% 0.04 165.5)
#1F644B 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) | #625D4A | 0.079 |
| Deuteranopia (no green cones) | #58564D | 0.076 |
| Tritanopia (no blue cones) | #00645D | 0.029 |
| Achromatopsia (no color) | #595959 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F644B
#1F644B
oklch(45.3% 0.08 165.2)
- #764360
#764360
oklch(45.4% 0.081 345.6)
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 #1F644B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.021
- Pine #2B5D34 ΔE 0.033
- Spruce #0A5F38 ΔE 0.033
- Dark Aqua #05696B ΔE 0.048
- Petrol #005F6A ΔE 0.059
- Dark Aquamarine #017371 ΔE 0.063
- Dark Blue Green #005249 ΔE 0.064
- Deep Teal #00555A ΔE 0.065
Use #1F644B 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.