#31A688
Closest named color: Jade (#1FA774). oklch(65.3% 0.112 171.8), rgb(49, 166, 136).
Aa
Black text reads best on this color (6.94:1).
About this color
#31A688 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.112 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.032 away. Black text reads best on it, at 6.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Jade (#1FA774) |
| Black text | 6.94:1 |
| White text | 3.02:1 |
Values
| HEX | #31A688 |
| RGB | rgb(49, 166, 136) |
| HSL | hsl(165, 54%, 42%) |
| OKLCH | oklch(65.3% 0.112 171.8) |
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 #31A688 | 3.02:1 | AA large text | Lc -62.0 | Content text, not long reading |
| Black text on #31A688 | 6.94:1 | AA | Lc 47.4 | Large or bold text, headings |
| #31A688 text on white | 3.02:1 | AA large text | Lc 56.7 | Large or bold text, headings |
| #31A688 text on black | 6.94:1 | AA | Lc -45.1 | Large or bold text, headings |
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 500.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDE8
oklch(93.5% 0.015 171)
-
Step 200
200
#C6E0D7
oklch(88.5% 0.03 172.8)
-
Step 300
300
#9DCDBC
oklch(81% 0.056 171.1)
-
Step 400
400
#62B39A
oklch(70.8% 0.089 171.6)
-
Step 500
500 (this color)
#31A688
oklch(65.3% 0.112 171.8)
-
Step 600
600
#00876C
oklch(55.5% 0.108 172.1)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#005D4A
oklch(42.6% 0.082 172.5)
-
Step 900
900
#004E3D
oklch(37.8% 0.073 171.8)
-
Step 950
950
#072E24
oklch(27.1% 0.047 171.9)
#31A688 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) | #A19B87 | 0.116 |
| Deuteranopia (no green cones) | #918F8A | 0.112 |
| Tritanopia (no blue cones) | #00A79D | 0.031 |
| Achromatopsia (no color) | #949494 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31A688
#31A688
oklch(65.3% 0.112 171.8)
- #C47297
#C47297
oklch(65.3% 0.112 352.1)
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 #31A688, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.032
- Persian Green #2A9D8F ΔE 0.033
- Ocean Green #3D9973 ΔE 0.040
- Blue Green #0F9B8E ΔE 0.040
- Greeny Blue #42B395 ΔE 0.041
- Dark Seafoam Green #3EAF76 ΔE 0.043
- Dull Teal #5F9E8F ΔE 0.044
- Bluey Green #2BB179 ΔE 0.045
Use #31A688 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.