#657C19
Closest named color: Olive Green (#677A04). oklch(54.9% 0.123 122.3), rgb(101, 124, 25).
Aa
White text reads best on this color (4.71:1).
About this color
#657C19 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 55%, its chroma 0.123 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Green (#677A04), ΔE 0.008 away. White text reads best on it, at 4.71:1.
| Hue family | Yellows |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Olive Green (#677A04) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #657C19 |
| RGB | rgb(101, 124, 25) |
| HSL | hsl(74, 66%, 29%) |
| OKLCH | oklch(54.9% 0.123 122.3) |
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 #657C19 | 4.71:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #657C19 | 4.45:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #657C19 text on white | 4.71:1 | AA | Lc 72.6 | Content text, not long reading |
| #657C19 text on black | 4.45:1 | AA large text | Lc -29.1 | Dividers and decoration only |
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
#E8ECE0
oklch(93.7% 0.017 121.8)
-
Step 200
200
#D5DDC7
oklch(88.5% 0.031 123.3)
-
Step 300
300
#BAC79F
oklch(80.9% 0.056 122.3)
-
Step 400
400
#97AA6B
oklch(70.8% 0.088 122.3)
-
Step 500
500
#7E9441
oklch(63.1% 0.112 122)
-
Step 600
600 (this color)
#657C19
oklch(54.9% 0.123 122.3)
-
Step 700
700
#566A0C
oklch(49.1% 0.114 122)
-
Step 800
800
#465710
oklch(42.8% 0.095 122.5)
-
Step 900
900
#3B4816
oklch(37.8% 0.075 122.4)
-
Step 950
950
#222A0E
oklch(27% 0.047 122.9)
#657C19 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) | #847400 | 0.048 |
| Deuteranopia (no green cones) | #817323 | 0.051 |
| Tritanopia (no blue cones) | #6B756A | 0.104 |
| Achromatopsia (no color) | #737373 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #657C19
#657C19
oklch(54.9% 0.123 122.3)
- #7F5EAC
#7F5EAC
oklch(54.9% 0.122 302.1)
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 #657C19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Green #677A04 ΔE 0.008
- Murky Green #6C7A0E ΔE 0.010
- Swamp #698339 ΔE 0.030
- Military Green #667C3E ΔE 0.033
- Muddy Green #657432 ΔE 0.036
- Swamp Green #748500 ΔE 0.037
- Khaki Green #728639 ΔE 0.042
- Olive #808000 ΔE 0.042
Use #657C19 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.