#39665F
Closest named color: Dark Green Blue (#1F6357). oklch(47.6% 0.051 183), rgb(57, 102, 95).
Aa
White text reads best on this color (6.48:1).
About this color
#39665F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.051 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.029 away. White text reads best on it, at 6.48:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.23:1 |
| White text | 6.48:1 |
Values
| HEX | #39665F |
| RGB | rgb(57, 102, 95) |
| HSL | hsl(171, 28%, 31%) |
| OKLCH | oklch(47.6% 0.051 183) |
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 #39665F | 6.48:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #39665F | 3.23:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #39665F text on white | 6.48:1 | AA | Lc 82.1 | Fine for body text |
| #39665F text on black | 3.23:1 | AA large text | Lc -19.8 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCDA
oklch(88.5% 0.013 185.1)
-
Step 300
300
#B0C6C2
oklch(80.9% 0.025 183.6)
-
Step 400
400
#86A9A3
oklch(70.7% 0.039 183.6)
-
Step 500
500
#66948C
oklch(63.1% 0.051 182.6)
-
Step 600
600
#4D7E76
oklch(55.6% 0.055 182.8)
-
Step 700
700 (this color)
#39665F
oklch(47.6% 0.051 183)
-
Step 800
800
#335751
oklch(42.8% 0.043 182.5)
-
Step 900
900
#2D4743
oklch(37.6% 0.033 183.9)
-
Step 950
950
#1B2A27
oklch(27% 0.021 180.8)
#39665F 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) | #62615F | 0.055 |
| Deuteranopia (no green cones) | #5A5C60 | 0.051 |
| Tritanopia (no blue cones) | #276864 | 0.016 |
| Achromatopsia (no color) | #5E5E5E | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39665F
#39665F
oklch(47.6% 0.051 183)
- #755059
#755059
oklch(47.4% 0.051 3.2)
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 #39665F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.029
- Dark Aqua #05696B ΔE 0.032
- Dark Aquamarine #017371 ΔE 0.045
- Slate #516572 ΔE 0.046
- Deep Turquoise #017374 ΔE 0.047
- Petrol #005F6A ΔE 0.049
- Deep Aqua #08787F ΔE 0.063
- Bluegreen #017A79 ΔE 0.063
Use #39665F 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.