#425C4D
Closest named color: Dark Green Blue (#1F6357). oklch(44.9% 0.04 159), rgb(66, 92, 77).
Aa
White text reads best on this color (7.31:1).
About this color
#425C4D is a dark, muted green. In OKLCH its lightness is 45%, its chroma 0.040 and its hue 159°. 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 7.31:1.
| Hue family | Greens |
| Lightness | dark (45%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.86:1 |
| White text | 7.31:1 |
Values
| HEX | #425C4D |
| RGB | rgb(66, 92, 77) |
| HSL | hsl(145, 16%, 31%) |
| OKLCH | oklch(44.9% 0.04 159) |
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 #425C4D | 7.31:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #425C4D | 2.86:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #425C4D text on white | 7.31:1 | AAA | Lc 85.4 | Fine for body text |
| #425C4D text on black | 2.86:1 | Fails | Lc -16.6 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD6
oklch(88.5% 0.013 159.9)
-
Step 300
300
#B5C5BB
oklch(80.8% 0.022 158.5)
-
Step 400
400
#8EA898
oklch(70.7% 0.037 158.3)
-
Step 500
500
#71937F
oklch(63.2% 0.048 158.8)
-
Step 600
600
#597D68
oklch(55.6% 0.052 158.6)
-
Step 700
700
#496957
oklch(49% 0.047 159.4)
-
Step 800
800 (this color)
#425C4D
oklch(44.9% 0.04 159)
-
Step 900
900
#34473C
oklch(37.8% 0.03 159.1)
-
Step 950
950
#1E2923
oklch(26.8% 0.019 161)
#425C4D 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) | #5B584C | 0.037 |
| Deuteranopia (no green cones) | #57554E | 0.036 |
| Tritanopia (no blue cones) | #3D5C58 | 0.018 |
| Achromatopsia (no color) | #565656 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425C4D
#425C4D
oklch(44.9% 0.04 159)
- #644D5C
#644D5C
oklch(44.9% 0.038 339.6)
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 #425C4D, 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
- Pine #2B5D34 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dark Aqua #05696B ΔE 0.059
- Petrol #005F6A ΔE 0.059
- Spruce #0A5F38 ΔE 0.063
- Deep Teal #00555A ΔE 0.063
- Slate #516572 ΔE 0.065
Use #425C4D 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.