#37685A
Closest named color: Dark Green Blue (#1F6357). oklch(47.8% 0.058 173.2), rgb(55, 104, 90).
Aa
White text reads best on this color (6.38:1).
About this color
#37685A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.058 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.028 away. White text reads best on it, at 6.38:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.29:1 |
| White text | 6.38:1 |
Values
| HEX | #37685A |
| RGB | rgb(55, 104, 90) |
| HSL | hsl(163, 31%, 31%) |
| OKLCH | oklch(47.8% 0.058 173.2) |
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 #37685A | 6.38:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #37685A | 3.29:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #37685A text on white | 6.38:1 | AA | Lc 81.6 | Fine for body text |
| #37685A text on black | 3.29:1 | AA large text | Lc -20.3 | 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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#CFDDD8
oklch(88.6% 0.016 172.6)
-
Step 300
300
#AFC7BF
oklch(80.9% 0.028 173.5)
-
Step 400
400
#84AA9E
oklch(70.6% 0.045 173.7)
-
Step 500
500
#649586
oklch(63% 0.058 173.2)
-
Step 600
600
#4A8070
oklch(55.7% 0.063 172.9)
-
Step 700
700 (this color)
#37685A
oklch(47.8% 0.058 173.2)
-
Step 800
800
#31584C
oklch(42.7% 0.049 172.1)
-
Step 900
900
#2C4840
oklch(37.7% 0.037 174.3)
-
Step 950
950
#1A2A25
oklch(26.9% 0.023 173)
#37685A 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) | #656259 | 0.061 |
| Deuteranopia (no green cones) | #5D5D5B | 0.057 |
| Tritanopia (no blue cones) | #266964 | 0.019 |
| Achromatopsia (no color) | #5F5F5F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37685A
#37685A
oklch(47.8% 0.058 173.2)
- #774F60
#774F60
oklch(47.7% 0.059 352.4)
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 #37685A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.028
- Dark Aqua #05696B ΔE 0.035
- Dark Aquamarine #017371 ΔE 0.044
- Deep Turquoise #017374 ΔE 0.046
- Slate #516572 ΔE 0.055
- Petrol #005F6A ΔE 0.056
- Bluegreen #017A79 ΔE 0.061
- Pine #2B5D34 ΔE 0.062
Use #37685A 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.