#438D21
Closest named color: Sap Green (#5C8B15). oklch(57.4% 0.158 137.9), rgb(67, 141, 33).
Aa
Black text reads best on this color (5.07:1).
About this color
#438D21 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.158 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sap Green (#5C8B15), ΔE 0.024 away. Black text reads best on it, at 5.07:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Sap Green (#5C8B15) |
| Black text | 5.07:1 |
| White text | 4.14:1 |
Values
| HEX | #438D21 |
| RGB | rgb(67, 141, 33) |
| HSL | hsl(101, 62%, 34%) |
| OKLCH | oklch(57.4% 0.158 137.9) |
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 #438D21 | 4.14:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #438D21 | 5.07:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #438D21 text on white | 4.14:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #438D21 text on black | 5.07:1 | AA | Lc -33.5 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EDE0
oklch(93.5% 0.02 138.4)
-
Step 200
200
#CDE0C7
oklch(88.6% 0.039 138.2)
-
Step 300
300
#ABCC9F
oklch(80.9% 0.071 137.4)
-
Step 400
400
#7DB16A
oklch(70.6% 0.113 137.7)
-
Step 500
500
#5A9D3F
oklch(63% 0.146 137.7)
-
Step 600
600 (this color)
#438D21
oklch(57.4% 0.158 137.9)
-
Step 700
700
#2F7308
oklch(49.2% 0.148 137.9)
-
Step 800
800
#285D0E
oklch(42.6% 0.121 137.9)
-
Step 900
900
#264D15
oklch(37.8% 0.095 137.6)
-
Step 950
950
#172D0E
oklch(27% 0.06 137.5)
#438D21 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) | #92800A | 0.102 |
| Deuteranopia (no green cones) | #887A2C | 0.102 |
| Tritanopia (no blue cones) | #3D8878 | 0.110 |
| Achromatopsia (no color) | #7D7D7D | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #438D21
#438D21
oklch(57.4% 0.158 137.9)
- #9E55B4
#9E55B4
oklch(57.4% 0.158 317.9)
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 #438D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sap Green #5C8B15 ΔE 0.024
- Forest Green #228B22 ΔE 0.024
- Kelley Green #009337 ΔE 0.030
- Emerald Green #028F1E ΔE 0.031
- Irish Green #019529 ΔE 0.033
- Mossy Green #638B27 ΔE 0.035
- True Green #089404 ΔE 0.039
- Fern Green #548D44 ΔE 0.039
Use #438D21 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.