#019F5B
Closest named color: Jade (#1FA774). oklch(61.7% 0.152 155.1), rgb(1, 159, 91).
Aa
Black text reads best on this color (6.11:1).
About this color
#019F5B is a medium-dark, vivid green. In OKLCH its lightness is 62%, its chroma 0.152 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.038 away. Black text reads best on it, at 6.11:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #019F5B |
| RGB | rgb(1, 159, 91) |
| HSL | hsl(154, 99%, 31%) |
| OKLCH | oklch(61.7% 0.152 155.1) |
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 #019F5B | 3.43:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #019F5B | 6.11:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #019F5B text on white | 3.43:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #019F5B text on black | 6.11:1 | 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
#F0F8F3
oklch(97.2% 0.011 158.8)
-
Step 100
100
#DFEEE4
oklch(93.5% 0.021 156.8)
-
Step 200
200
#C5E2CD
oklch(88.6% 0.042 154)
-
Step 300
300
#9ACFAC
oklch(80.8% 0.074 155.5)
-
Step 400
400
#5CB680
oklch(70.6% 0.118 155.4)
-
Step 500
500 (this color)
#019F5B
oklch(61.7% 0.152 155.1)
-
Step 600
600
#008A4E
oklch(55.6% 0.137 155)
-
Step 700
700
#007441
oklch(49.1% 0.121 155.2)
-
Step 800
800
#005F34
oklch(42.6% 0.105 155.1)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#042F18
oklch(27% 0.063 154.7)
#019F5B 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) | #9E9156 | 0.134 |
| Deuteranopia (no green cones) | #8F8660 | 0.132 |
| Tritanopia (no blue cones) | #009D8E | 0.075 |
| Achromatopsia (no color) | #8A8A8A | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #019F5B
#019F5B
oklch(61.7% 0.152 155.1)
- #BB5DA9
#BB5DA9
oklch(61.6% 0.153 335)
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 #019F5B, closest first.
No curated palette has a color within ΔE 0.04 of #019F5B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.038
- Kelley Green #009337 ΔE 0.048
- Light Forest Green #4F9153 ΔE 0.048
- Seaweed Green #35AD6B ΔE 0.049
- Ocean Green #3D9973 ΔE 0.050
- Muted Green #5FA052 ΔE 0.050
- Viridian #1E9167 ΔE 0.050
- Mid Green #50A747 ΔE 0.051
Use #019F5B 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.