#1B5644
Closest named color: Dark Blue Green (#005249). oklch(41% 0.068 169.3), rgb(27, 86, 68).
Aa
White text reads best on this color (8.53:1).
About this color
#1B5644 is a dark, muted green. In OKLCH its lightness is 41%, its chroma 0.068 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.022 away. White text reads best on it, at 8.53:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.46:1 |
| White text | 8.53:1 |
Values
| HEX | #1B5644 |
| RGB | rgb(27, 86, 68) |
| HSL | hsl(162, 52%, 22%) |
| OKLCH | oklch(41% 0.068 169.3) |
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 #1B5644 | 8.53:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #1B5644 | 2.46:1 | Fails | Lc 14.9 | Not readable |
| #1B5644 text on white | 8.53:1 | AAA | Lc 89.1 | Fine for body text |
| #1B5644 text on black | 2.46:1 | Fails | Lc -13.1 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CCDED7
oklch(88.5% 0.021 170.6)
-
Step 300
300
#A8C9BC
oklch(80.8% 0.04 169.5)
-
Step 400
400
#78AE9A
oklch(70.7% 0.064 169.4)
-
Step 500
500
#539A81
oklch(63.2% 0.082 168.7)
-
Step 600
600
#33846B
oklch(55.6% 0.088 169.6)
-
Step 700
700
#257059
oklch(49.2% 0.082 169.1)
-
Step 800
800 (this color)
#1B5644
oklch(41% 0.068 169.3)
-
Step 900
900
#214B3D
oklch(37.8% 0.053 169.2)
-
Step 950
950
#142C24
oklch(27.1% 0.034 170)
#1B5644 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) | #545043 | 0.070 |
| Deuteranopia (no green cones) | #4B4A45 | 0.066 |
| Tritanopia (no blue cones) | #005751 | 0.022 |
| Achromatopsia (no color) | #4C4C4C | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5644
#1B5644
oklch(41% 0.068 169.3)
- #663A50
#663A50
oklch(41% 0.069 349.2)
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 #1B5644, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.022
- Deep Teal #00555A ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.039
- Pine #2B5D34 ΔE 0.040
- Spruce #0A5F38 ΔE 0.041
- Dark Teal #014D4E ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.046
- Petrol #005F6A ΔE 0.060
Use #1B5644 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.