#319971
Closest named color: Ocean Green (#3D9973). oklch(61.3% 0.113 163.6), rgb(49, 153, 113).
Aa
Black text reads best on this color (5.92:1).
About this color
#319971 is a medium-dark, moderately saturated green. In OKLCH its lightness is 61%, its chroma 0.113 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.009 away. Black text reads best on it, at 5.92:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 5.92:1 |
| White text | 3.54:1 |
Values
| HEX | #319971 |
| RGB | rgb(49, 153, 113) |
| HSL | hsl(157, 51%, 40%) |
| OKLCH | oklch(61.3% 0.113 163.6) |
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 #319971 | 3.54:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #319971 | 5.92:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #319971 text on white | 3.54:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #319971 text on black | 5.92:1 | AA | Lc -39.0 | Non-text elements, placeholder text |
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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C8E0D3
oklch(88.5% 0.031 162.1)
-
Step 300
300
#A1CCB7
oklch(80.8% 0.054 163.8)
-
Step 400
400
#69B291
oklch(70.6% 0.089 163.5)
-
Step 500
500 (this color)
#319971
oklch(61.3% 0.113 163.6)
-
Step 600
600
#008860
oklch(55.5% 0.118 164)
-
Step 700
700
#007350
oklch(49.2% 0.105 163.6)
-
Step 800
800
#005E41
oklch(42.7% 0.091 163.9)
-
Step 900
900
#0E4E37
oklch(37.8% 0.074 163.8)
-
Step 950
950
#0C2D20
oklch(26.8% 0.046 164.1)
#319971 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) | #968E6F | 0.110 |
| Deuteranopia (no green cones) | #888474 | 0.106 |
| Tritanopia (no blue cones) | #00998E | 0.043 |
| Achromatopsia (no color) | #888888 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #319971
#319971
oklch(61.3% 0.113 163.6)
- #B36795
#B36795
oklch(61.3% 0.113 343.8)
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 #319971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.009
- Viridian #1E9167 ΔE 0.029
- Light Forest Green #4F9153 ΔE 0.040
- Jade #1FA774 ΔE 0.041
- Blue Green #0F9B8E ΔE 0.041
- Persian Green #2A9D8F ΔE 0.042
- Sea Green #2E8B57 ΔE 0.048
- Dusty Teal #4C9085 ΔE 0.051
Use #319971 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.