#319B4B
Closest named color: Kelley Green (#009337). oklch(61.1% 0.151 148), rgb(49, 155, 75).
Aa
Black text reads best on this color (5.92:1).
About this color
#319B4B is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.151 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.037 away. Black text reads best on it, at 5.92:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 5.92:1 |
| White text | 3.54:1 |
Values
| HEX | #319B4B |
| RGB | rgb(49, 155, 75) |
| HSL | hsl(135, 52%, 40%) |
| OKLCH | oklch(61.1% 0.151 148) |
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 #319B4B | 3.54:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #319B4B | 5.92:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #319B4B text on white | 3.54:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #319B4B 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE2
oklch(93.6% 0.021 147.6)
-
Step 200
200
#C8E1CA
oklch(88.5% 0.041 147.5)
-
Step 300
300
#A1CEA6
oklch(80.9% 0.073 147.8)
-
Step 400
400
#6AB576
oklch(70.8% 0.118 148)
-
Step 500
500 (this color)
#319B4B
oklch(61.1% 0.151 148)
-
Step 600
600
#008B36
oklch(55.5% 0.161 148.1)
-
Step 700
700
#00752C
oklch(49% 0.142 148)
-
Step 800
800
#006023
oklch(42.7% 0.123 148.1)
-
Step 900
900
#0F4F20
oklch(37.7% 0.099 147.8)
-
Step 950
950
#0C2E14
oklch(26.9% 0.062 148.4)
#319B4B 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) | #9D8D44 | 0.122 |
| Deuteranopia (no green cones) | #908451 | 0.121 |
| Tritanopia (no blue cones) | #039888 | 0.086 |
| Achromatopsia (no color) | #888888 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #319B4B
#319B4B
oklch(61.1% 0.151 148)
- #B25EB1
#B25EB1
oklch(61% 0.152 327.7)
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 #319B4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.040
- Irish Green #019529 ΔE 0.042
- Muted Green #5FA052 ΔE 0.044
- Fern Green #548D44 ΔE 0.044
- Grass Green #3F9B0B ΔE 0.044
- Mid Green #50A747 ΔE 0.046
- Grassy Green #419C03 ΔE 0.047
Use #319B4B 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.