#42856B
Closest named color: Dark Sage (#598556). oklch(56.5% 0.08 166.1), rgb(66, 133, 107).
Aa
Black text reads best on this color (4.79:1).
About this color
#42856B is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.080 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.034 away. Black text reads best on it, at 4.79:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.79:1 |
| White text | 4.37:1 |
Values
| HEX | #42856B |
| RGB | rgb(66, 133, 107) |
| HSL | hsl(157, 34%, 39%) |
| OKLCH | oklch(56.5% 0.08 166.1) |
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 #42856B | 4.37:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #42856B | 4.79:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #42856B text on white | 4.37:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #42856B text on black | 4.79:1 | AA | Lc -31.5 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED6
oklch(88.6% 0.021 166)
-
Step 300
300
#ACC8BB
oklch(80.8% 0.035 165.8)
-
Step 400
400
#7EAD98
oklch(70.8% 0.059 165.4)
-
Step 500
500
#5C987F
oklch(63.1% 0.074 165.7)
-
Step 600
600 (this color)
#42856B
oklch(56.5% 0.08 166.1)
-
Step 700
700
#316E57
oklch(49.1% 0.074 166.2)
-
Step 800
800
#295A47
oklch(42.7% 0.063 165.9)
-
Step 900
900
#274A3C
oklch(37.8% 0.048 166.2)
-
Step 950
950
#172B23
oklch(26.9% 0.03 166.8)
#42856B 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) | #827D6A | 0.080 |
| Deuteranopia (no green cones) | #78766D | 0.077 |
| Tritanopia (no blue cones) | #2B857E | 0.031 |
| Achromatopsia (no color) | #797979 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42856B
#42856B
oklch(56.5% 0.08 166.1)
- #986280
#986280
oklch(56.4% 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 #42856B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.034
- Viridian #1E9167 ΔE 0.043
- Sea Green #2E8B57 ΔE 0.043
- Dusty Teal #4C9085 ΔE 0.046
- Slate Green #658D6D ΔE 0.047
- Dark Cyan #008B8B ΔE 0.049
- Teal #008080 ΔE 0.050
- Bluegreen #017A79 ΔE 0.058
Use #42856B 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.