#407257
Closest named color: Dark Aquamarine (#017371). oklch(50.9% 0.07 159), rgb(64, 114, 87).
Aa
White text reads best on this color (5.58:1).
About this color
#407257 is a medium-dark, muted green. In OKLCH its lightness is 51%, its chroma 0.070 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.048 away. White text reads best on it, at 5.58:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.070) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.76:1 |
| White text | 5.58:1 |
Values
| HEX | #407257 |
| RGB | rgb(64, 114, 87) |
| HSL | hsl(148, 28%, 35%) |
| OKLCH | oklch(50.9% 0.07 159) |
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 #407257 | 5.58:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #407257 | 3.76:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #407257 text on white | 5.58:1 | AA | Lc 77.8 | Fine for body text |
| #407257 text on black | 3.76:1 | AA large text | Lc -24.0 | 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 700.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#CFDDD5
oklch(88.5% 0.019 161.1)
-
Step 300
300
#AFC8B9
oklch(81% 0.034 159.2)
-
Step 400
400
#84AB94
oklch(70.6% 0.054 158.8)
-
Step 500
500
#64977A
oklch(63.2% 0.07 158.7)
-
Step 600
600
#4A8163
oklch(55.6% 0.076 158.8)
-
Step 700
700 (this color)
#407257
oklch(50.9% 0.07 159)
-
Step 800
800
#315943
oklch(42.7% 0.059 158.5)
-
Step 900
900
#2C4939
oklch(37.7% 0.045 159.1)
-
Step 950
950
#1A2B21
oklch(27% 0.029 157.9)
#407257 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) | #716B56 | 0.066 |
| Deuteranopia (no green cones) | #696659 | 0.063 |
| Tritanopia (no blue cones) | #34716A | 0.031 |
| Achromatopsia (no color) | #686868 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #407257
#407257
oklch(50.9% 0.07 159)
- #805673
#805673
oklch(50.9% 0.069 338.7)
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 #407257, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.048
- Dark Moss Green #606C38 ΔE 0.049
- Dark Olive Green #556B2F ΔE 0.051
- Deep Turquoise #017374 ΔE 0.052
- Bluegreen #017A79 ΔE 0.054
- Dark Green Blue #1F6357 ΔE 0.060
- Dark Aqua #05696B ΔE 0.061
- Deep Aqua #08787F ΔE 0.061
Use #407257 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.