#425447
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.6% 0.031 153.6), rgb(66, 84, 71).
Aa
White text reads best on this color (8.10:1).
About this color
#425447 is a dark, muted green. In OKLCH its lightness is 43%, its chroma 0.031 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.035 away. White text reads best on it, at 8.10:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #425447 |
| RGB | rgb(66, 84, 71) |
| HSL | hsl(137, 12%, 29%) |
| OKLCH | oklch(42.6% 0.031 153.6) |
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 #425447 | 8.10:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #425447 | 2.59:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #425447 text on white | 8.10:1 | AAA | Lc 88.1 | Fine for body text |
| #425447 text on black | 2.59:1 | Fails | Lc -14.1 | Not readable |
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
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D4DBD6
oklch(88.5% 0.01 155.1)
-
Step 300
300
#B8C4BB
oklch(80.8% 0.018 153.5)
-
Step 400
400
#93A698
oklch(70.6% 0.029 153.6)
-
Step 500
500
#79907F
oklch(63% 0.036 153.2)
-
Step 600
600
#627B68
oklch(55.7% 0.041 152.2)
-
Step 700
700
#516757
oklch(49.1% 0.037 153.3)
-
Step 800
800 (this color)
#425447
oklch(42.6% 0.031 153.6)
-
Step 900
900
#38453C
oklch(37.6% 0.023 155)
-
Step 950
950
#212923
oklch(27.1% 0.016 152.8)
#425447 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) | #545146 | 0.028 |
| Deuteranopia (no green cones) | #514F48 | 0.027 |
| Tritanopia (no blue cones) | #3F5350 | 0.016 |
| Achromatopsia (no color) | #505050 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425447
#425447
oklch(42.6% 0.031 153.6)
- #5A4956
#5A4956
oklch(42.8% 0.031 334.4)
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 #425447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Green Blue #1F6357 ΔE 0.052
- Pine #2B5D34 ΔE 0.056
- Dark Blue Green #005249 ΔE 0.056
- Deep Teal #00555A ΔE 0.057
- Charcoal Grey #3C4142 ΔE 0.062
- Dark Teal #014D4E ΔE 0.065
- Petrol #005F6A ΔE 0.066
Use #425447 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.