#309E58
Closest named color: Jade (#1FA774). oklch(62.1% 0.144 151.5), rgb(48, 158, 88).
Aa
Black text reads best on this color (6.15:1).
About this color
#309E58 is a medium-light, vivid green. In OKLCH its lightness is 62%, its chroma 0.144 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.037 away. Black text reads best on it, at 6.15:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.15:1 |
| White text | 3.41:1 |
Values
| HEX | #309E58 |
| RGB | rgb(48, 158, 88) |
| HSL | hsl(142, 53%, 40%) |
| OKLCH | oklch(62.1% 0.144 151.5) |
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 #309E58 | 3.41:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #309E58 | 6.15:1 | AA | Lc 42.8 | Non-text elements, placeholder text |
| #309E58 text on white | 3.41:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #309E58 text on black | 6.15:1 | AA | Lc -40.5 | 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
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C7E1CC
oklch(88.5% 0.04 151.1)
-
Step 300
300
#A0CEAA
oklch(80.9% 0.07 151.2)
-
Step 400
400
#68B57D
oklch(70.8% 0.112 151.4)
-
Step 500
500 (this color)
#309E58
oklch(62.1% 0.144 151.5)
-
Step 600
600
#008B44
oklch(55.7% 0.148 151.5)
-
Step 700
700
#007538
oklch(49.2% 0.131 151.5)
-
Step 800
800
#00602D
oklch(42.8% 0.114 151.6)
-
Step 900
900
#0B4F27
oklch(37.7% 0.093 151.8)
-
Step 950
950
#0B2E17
oklch(26.9% 0.058 151.6)
#309E58 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) | #9F9153 | 0.122 |
| Deuteranopia (no green cones) | #91875D | 0.120 |
| Tritanopia (no blue cones) | #009C8D | 0.076 |
| Achromatopsia (no color) | #8B8B8B | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309E58
#309E58
oklch(62.1% 0.144 151.5)
- #B762AD
#B762AD
oklch(62% 0.145 331.7)
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 #309E58, closest first.
No curated palette has a color within ΔE 0.04 of #309E58.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.037
- Muted Green #5FA052 ΔE 0.038
- Light Forest Green #4F9153 ΔE 0.040
- Mid Green #50A747 ΔE 0.043
- Seaweed Green #35AD6B ΔE 0.046
- Ocean Green #3D9973 ΔE 0.046
- Flat Green #699D4C ΔE 0.046
- Jade Green #2BAF6A ΔE 0.049
Use #309E58 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.