#31766A
Closest named color: Bluegreen (#017A79). oklch(51.8% 0.072 180.2), rgb(49, 118, 106).
Aa
White text reads best on this color (5.34:1).
About this color
#31766A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.072 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.026 away. White text reads best on it, at 5.34:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 3.93:1 |
| White text | 5.34:1 |
Values
| HEX | #31766A |
| RGB | rgb(49, 118, 106) |
| HSL | hsl(170, 41%, 33%) |
| OKLCH | oklch(51.8% 0.072 180.2) |
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 #31766A | 5.34:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #31766A | 3.93:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #31766A text on white | 5.34:1 | AA | Lc 76.4 | Fine for body text |
| #31766A text on black | 3.93:1 | AA large text | Lc -25.3 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A9C8C1
oklch(80.8% 0.035 180.2)
-
Step 400
400
#7AACA2
oklch(70.6% 0.055 180.8)
-
Step 500
500
#55988B
oklch(63.1% 0.072 179.9)
-
Step 600
600
#378275
oklch(55.6% 0.077 180.2)
-
Step 700
700 (this color)
#31766A
oklch(51.8% 0.072 180.2)
-
Step 800
800
#235A50
oklch(42.8% 0.06 179.4)
-
Step 900
900
#224A43
oklch(37.8% 0.047 180.8)
-
Step 950
950
#152B27
oklch(26.9% 0.029 181)
#31766A 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) | #716F6A | 0.077 |
| Deuteranopia (no green cones) | #67686B | 0.072 |
| Tritanopia (no blue cones) | #007872 | 0.021 |
| Achromatopsia (no color) | #6B6B6B | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31766A
#31766A
oklch(51.8% 0.072 180.2)
- #8B5666
#8B5666
oklch(51.7% 0.073 0.4)
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 #31766A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.026
- Dark Aquamarine #017371 ΔE 0.027
- Deep Turquoise #017374 ΔE 0.029
- Deep Aqua #08787F ΔE 0.034
- Teal #008080 ΔE 0.038
- Dark Aqua #05696B ΔE 0.051
- Ocean #017B92 ΔE 0.061
- Dark Green Blue #1F6357 ΔE 0.064
Use #31766A 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.