#638113
Closest named color: Olive Green (#677A04). oklch(56% 0.133 124.8), rgb(99, 129, 19).
Aa
Black text reads best on this color (4.68:1).
About this color
#638113 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 56%, its chroma 0.133 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.020 away. Black text reads best on it, at 4.68:1.
| Hue family | Yellows |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.68:1 |
| White text | 4.48:1 |
Values
| HEX | #638113 |
| RGB | rgb(99, 129, 19) |
| HSL | hsl(76, 74%, 29%) |
| OKLCH | oklch(56% 0.133 124.8) |
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 #638113 | 4.48:1 | AA large text | Lc -76.5 | Fine for body text |
| Black text on #638113 | 4.68:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #638113 text on white | 4.48:1 | AA large text | Lc 71.0 | Content text, not long reading |
| #638113 text on black | 4.68:1 | AA | Lc -30.7 | 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
#93AB67
oklch(70.6% 0.096 124.7)
-
Step 500
500
#79963B
oklch(63.1% 0.123 124.7)
-
Step 600
600 (this color)
#638113
oklch(56% 0.133 124.8)
-
Step 700
700
#516C00
oklch(49.2% 0.123 125)
-
Step 800
800
#425808
oklch(42.7% 0.103 125.1)
-
Step 900
900
#384913
oklch(37.8% 0.08 125.2)
-
Step 950
950
#212B0D
oklch(27.1% 0.051 125.1)
#638113 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) | #897800 | 0.058 |
| Deuteranopia (no green cones) | #857720 | 0.059 |
| Tritanopia (no blue cones) | #687A6D | 0.109 |
| Achromatopsia (no color) | #777777 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #638113
#638113
oklch(56% 0.133 124.8)
- #875EB3
#875EB3
oklch(56.1% 0.133 304.7)
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 #638113, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.020
- Murky Green #6C7A0E ΔE 0.022
- Swamp Green #748500 ΔE 0.027
- Mossy Green #638B27 ΔE 0.029
- Sap Green #5C8B15 ΔE 0.029
- Swamp #698339 ΔE 0.031
- Moss Green #658B38 ΔE 0.035
- Khaki Green #728639 ΔE 0.039
Use #638113 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.