#678418
Closest named color: Swamp Green (#748500). oklch(57.1% 0.133 124.3), rgb(103, 132, 24).
Aa
Black text reads best on this color (4.89:1).
About this color
#678418 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 57%, its chroma 0.133 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Swamp Green (#748500), ΔE 0.018 away. Black text reads best on it, at 4.89:1.
| Hue family | Yellows |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Swamp Green (#748500) |
| Black text | 4.89:1 |
| White text | 4.29:1 |
Values
| HEX | #678418 |
| RGB | rgb(103, 132, 24) |
| HSL | hsl(76, 69%, 31%) |
| OKLCH | oklch(57.1% 0.133 124.3) |
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 #678418 | 4.29:1 | AA large text | Lc -75.0 | Fine for body text |
| Black text on #678418 | 4.89:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #678418 text on white | 4.29:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #678418 text on black | 4.89:1 | AA | Lc -32.1 | 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 600.
-
Step 50
50
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE0
oklch(93.6% 0.017 125.3)
-
Step 200
200
#D4DDC6
oklch(88.4% 0.032 124.5)
-
Step 300
300
#B8C89E
oklch(81% 0.06 124.7)
-
Step 400
400
#94AB67
oklch(70.7% 0.096 124.1)
-
Step 500
500
#7A963B
oklch(63.2% 0.123 124.3)
-
Step 600
600 (this color)
#678418
oklch(57.1% 0.133 124.3)
-
Step 700
700
#526C00
oklch(49.2% 0.123 124.5)
-
Step 800
800
#435807
oklch(42.8% 0.103 124.4)
-
Step 900
900
#394812
oklch(37.6% 0.079 123.6)
-
Step 950
950
#212A0D
oklch(26.8% 0.049 124.1)
#678418 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) | #8C7B00 | 0.056 |
| Deuteranopia (no green cones) | #887A23 | 0.057 |
| Tritanopia (no blue cones) | #6C7D70 | 0.109 |
| Achromatopsia (no color) | #7A7A7A | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #678418
#678418
oklch(57.1% 0.133 124.3)
- #8961B6
#8961B6
oklch(57% 0.132 304.2)
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 #678418, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Swamp Green #748500 ΔE 0.018
- Mossy Green #638B27 ΔE 0.019
- Sap Green #5C8B15 ΔE 0.024
- Moss Green #658B38 ΔE 0.026
- Swamp #698339 ΔE 0.028
- Murky Green #6C7A0E ΔE 0.028
- Olive Green #677A04 ΔE 0.028
- Olive Drab #6B8E23 ΔE 0.030
Use #678418 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.