#1A5540
Closest named color: Dark Blue Green (#005249). oklch(40.5% 0.071 165.8), rgb(26, 85, 64).
Aa
White text reads best on this color (8.68:1).
About this color
#1A5540 is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.023 away. White text reads best on it, at 8.68:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.41:1 |
| White text | 8.68:1 |
Values
| HEX | #1A5540 |
| RGB | rgb(26, 85, 64) |
| HSL | hsl(159, 53%, 22%) |
| OKLCH | oklch(40.5% 0.071 165.8) |
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 #1A5540 | 8.68:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #1A5540 | 2.41:1 | Fails | Lc 14.4 | Not readable |
| #1A5540 text on white | 8.68:1 | AAA | Lc 89.5 | Fine for body text |
| #1A5540 text on black | 2.41:1 | Fails | Lc -12.7 | Not readable |
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 800.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CCDED6
oklch(88.5% 0.022 167.4)
-
Step 300
300
#A9CABA
oklch(81% 0.042 164.5)
-
Step 400
400
#79AE97
oklch(70.7% 0.066 165.8)
-
Step 500
500
#539A7D
oklch(63.1% 0.085 165.4)
-
Step 600
600
#348467
oklch(55.6% 0.091 166.2)
-
Step 700
700
#257055
oklch(49.1% 0.086 165.6)
-
Step 800
800 (this color)
#1A5540
oklch(40.5% 0.071 165.8)
-
Step 900
900
#214B3B
oklch(37.7% 0.055 166.2)
-
Step 950
950
#142C22
oklch(27% 0.036 165)
#1A5540 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) | #534F3F | 0.070 |
| Deuteranopia (no green cones) | #4B4941 | 0.067 |
| Tritanopia (no blue cones) | #00554F | 0.026 |
| Achromatopsia (no color) | #4B4B4B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A5540
#1A5540
oklch(40.5% 0.071 165.8)
- #643951
#643951
oklch(40.5% 0.07 346.1)
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 #1A5540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.023
- Spruce #0A5F38 ΔE 0.039
- Pine #2B5D34 ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.042
- Dark Teal #014D4E ΔE 0.043
- Deep Teal #00555A ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.051
- Evergreen #05472A ΔE 0.055
Use #1A5540 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.