#407C66
Closest named color: Bluegreen (#017A79). oklch(53.9% 0.072 167.7), rgb(64, 124, 102).
Aa
White text reads best on this color (4.89:1).
About this color
#407C66 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.072 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.043 away. White text reads best on it, at 4.89:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.29:1 |
| White text | 4.89:1 |
Values
| HEX | #407C66 |
| RGB | rgb(64, 124, 102) |
| HSL | hsl(158, 32%, 37%) |
| OKLCH | oklch(53.9% 0.072 167.7) |
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 #407C66 | 4.89:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #407C66 | 4.29:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #407C66 text on white | 4.89:1 | AA | Lc 73.8 | Content text, not long reading |
| #407C66 text on black | 4.29:1 | AA large text | Lc -27.9 | 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
#CEDDD7
oklch(88.5% 0.018 170)
-
Step 300
300
#ADC8BC
oklch(80.9% 0.034 166.9)
-
Step 400
400
#81AB9A
oklch(70.6% 0.052 168.1)
-
Step 500
500
#609781
oklch(63.1% 0.068 167)
-
Step 600
600 (this color)
#407C66
oklch(53.9% 0.072 167.7)
-
Step 700
700
#366D59
oklch(49.1% 0.067 167.7)
-
Step 800
800
#2E5949
oklch(42.8% 0.056 167.6)
-
Step 900
900
#29493D
oklch(37.7% 0.044 168.1)
-
Step 950
950
#192B24
oklch(27.1% 0.027 167.9)
#407C66 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) | #797565 | 0.072 |
| Deuteranopia (no green cones) | #706E67 | 0.070 |
| Tritanopia (no blue cones) | #2C7C76 | 0.027 |
| Achromatopsia (no color) | #717171 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #407C66
#407C66
oklch(53.9% 0.072 167.7)
- #8E5D76
#8E5D76
oklch(53.9% 0.072 347.8)
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 #407C66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.043
- Teal #008080 ΔE 0.044
- Dark Sage #598556 ΔE 0.049
- Dark Aquamarine #017371 ΔE 0.052
- Deep Aqua #08787F ΔE 0.052
- Deep Turquoise #017374 ΔE 0.054
- Sea Green #2E8B57 ΔE 0.059
- Dark Cyan #008B8B ΔE 0.060
Use #407C66 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.