#1FA378
Closest named color: Jade (#1FA774). oklch(63.7% 0.126 165), rgb(31, 163, 120).
Aa
Black text reads best on this color (6.56:1).
About this color
#1FA378 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.126 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.015 away. Black text reads best on it, at 6.56:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.56:1 |
| White text | 3.19:1 |
Values
| HEX | #1FA378 |
| RGB | rgb(31, 163, 120) |
| HSL | hsl(160, 68%, 38%) |
| OKLCH | oklch(63.7% 0.126 165) |
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 #1FA378 | 3.19:1 | AA large text | Lc -64.1 | Content text, not long reading |
| Black text on #1FA378 | 6.56:1 | AA | Lc 45.4 | Large or bold text, headings |
| #1FA378 text on white | 3.19:1 | AA large text | Lc 58.7 | Large or bold text, headings |
| #1FA378 text on black | 6.56:1 | AA | Lc -43.0 | 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
#E0EEE7
oklch(93.7% 0.018 164.6)
-
Step 200
200
#C5E1D3
oklch(88.5% 0.035 164.1)
-
Step 300
300
#9BCEB7
oklch(80.9% 0.062 165.4)
-
Step 400
400
#5FB491
oklch(70.6% 0.099 164.9)
-
Step 500
500 (this color)
#1FA378
oklch(63.7% 0.126 165)
-
Step 600
600
#008862
oklch(55.5% 0.117 165.2)
-
Step 700
700
#007352
oklch(49.2% 0.104 164.9)
-
Step 800
800
#005E42
oklch(42.7% 0.09 164.7)
-
Step 900
900
#004E37
oklch(37.6% 0.079 165.5)
-
Step 950
950
#052E20
oklch(26.9% 0.052 165.4)
#1FA378 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) | #A09776 | 0.125 |
| Deuteranopia (no green cones) | #908B7B | 0.121 |
| Tritanopia (no blue cones) | #00A397 | 0.045 |
| Achromatopsia (no color) | #909090 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FA378
#1FA378
oklch(63.7% 0.126 165)
- #C16A9D
#C16A9D
oklch(63.9% 0.127 345.1)
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 #1FA378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.015
- Ocean Green #3D9973 ΔE 0.029
- Seaweed Green #35AD6B ΔE 0.041
- Dark Seafoam Green #3EAF76 ΔE 0.042
- Bluey Green #2BB179 ΔE 0.043
- Persian Green #2A9D8F ΔE 0.044
- Jade Green #2BAF6A ΔE 0.046
- Blue Green #0F9B8E ΔE 0.047
Use #1FA378 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.