#427D64
Closest named color: Dark Sage (#598556). oklch(54.2% 0.074 164.5), rgb(66, 125, 100).
Aa
White text reads best on this color (4.82:1).
About this color
#427D64 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.074 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.044 away. White text reads best on it, at 4.82:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.34:1 |
| White text | 4.82:1 |
Values
| HEX | #427D64 |
| RGB | rgb(66, 125, 100) |
| HSL | hsl(155, 31%, 37%) |
| OKLCH | oklch(54.2% 0.074 164.5) |
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 #427D64 | 4.82:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #427D64 | 4.34:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #427D64 text on white | 4.82:1 | AA | Lc 73.4 | Content text, not long reading |
| #427D64 text on black | 4.34:1 | AA large text | Lc -28.3 | 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 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
#CFDDD6
oklch(88.5% 0.018 164.6)
-
Step 300
300
#AEC8BB
oklch(81% 0.033 164)
-
Step 400
400
#82AC98
oklch(70.8% 0.054 164.1)
-
Step 500
500
#61977F
oklch(63.1% 0.068 164.6)
-
Step 600
600 (this color)
#427D64
oklch(54.2% 0.074 164.5)
-
Step 700
700
#376D56
oklch(49% 0.069 164.1)
-
Step 800
800
#2E5947
oklch(42.7% 0.057 164.8)
-
Step 900
900
#2A493B
oklch(37.6% 0.044 163.9)
-
Step 950
950
#192B23
oklch(27% 0.028 164.8)
#427D64 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) | #7B7663 | 0.073 |
| Deuteranopia (no green cones) | #726F66 | 0.071 |
| Tritanopia (no blue cones) | #307D76 | 0.029 |
| Achromatopsia (no color) | #727272 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #427D64
#427D64
oklch(54.2% 0.074 164.5)
- #8E5E7A
#8E5E7A
oklch(54.3% 0.073 344)
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 #427D64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.044
- Teal #008080 ΔE 0.047
- Bluegreen #017A79 ΔE 0.047
- Sea Green #2E8B57 ΔE 0.054
- Dark Aquamarine #017371 ΔE 0.057
- Deep Aqua #08787F ΔE 0.057
- Military Green #667C3E ΔE 0.059
- Deep Turquoise #017374 ΔE 0.059
Use #427D64 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.