#1FA178
Closest named color: Jade (#1FA774). oklch(63.2% 0.124 165.8), rgb(31, 161, 120).
Aa
Black text reads best on this color (6.42:1).
About this color
#1FA178 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.124 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.021 away. Black text reads best on it, at 6.42:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.42:1 |
| White text | 3.26:1 |
Values
| HEX | #1FA178 |
| RGB | rgb(31, 161, 120) |
| HSL | hsl(161, 68%, 38%) |
| OKLCH | oklch(63.2% 0.124 165.8) |
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 #1FA178 | 3.26:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #1FA178 | 6.42:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #1FA178 text on white | 3.26:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #1FA178 text on black | 6.42:1 | AA | Lc -42.2 | 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
#C5E1D4
oklch(88.6% 0.035 165.9)
-
Step 300
300
#9CCEB7
oklch(81% 0.062 165)
-
Step 400
400
#60B492
oklch(70.7% 0.097 165.4)
-
Step 500
500 (this color)
#1FA178
oklch(63.2% 0.124 165.8)
-
Step 600
600
#008863
oklch(55.6% 0.116 165.8)
-
Step 700
700
#007353
oklch(49.2% 0.103 165.6)
-
Step 800
800
#005E43
oklch(42.7% 0.089 165.5)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#052E20
oklch(26.9% 0.052 165.4)
#1FA178 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) | #9D9576 | 0.122 |
| Deuteranopia (no green cones) | #8E8A7B | 0.119 |
| Tritanopia (no blue cones) | #00A196 | 0.044 |
| Achromatopsia (no color) | #8E8E8E | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FA178
#1FA178
oklch(63.2% 0.124 165.8)
- #BE699A
#BE699A
oklch(63.2% 0.123 345.6)
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 #1FA178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.021
- Ocean Green #3D9973 ΔE 0.024
- Persian Green #2A9D8F ΔE 0.041
- Blue Green #0F9B8E ΔE 0.042
- Seaweed Green #35AD6B ΔE 0.047
- Dark Seafoam Green #3EAF76 ΔE 0.048
- Viridian #1E9167 ΔE 0.048
- Bluey Green #2BB179 ΔE 0.049
Use #1FA178 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.