#155447
Closest named color: Dark Blue Green (#005249). oklch(40.3% 0.066 175.9), rgb(21, 84, 71).
Aa
White text reads best on this color (8.78:1).
About this color
#155447 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.066 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.013 away. White text reads best on it, at 8.78:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.39:1 |
| White text | 8.78:1 |
Values
| HEX | #155447 |
| RGB | rgb(21, 84, 71) |
| HSL | hsl(168, 60%, 21%) |
| OKLCH | oklch(40.3% 0.066 175.9) |
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 #155447 | 8.78:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #155447 | 2.39:1 | Fails | Lc 14.2 | Not readable |
| #155447 text on white | 8.78:1 | AAA | Lc 89.8 | Fine for body text |
| #155447 text on black | 2.39:1 | Fails | Lc -12.5 | 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
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CBDED8
oklch(88.5% 0.022 174.9)
-
Step 300
300
#A7C9BF
oklch(80.8% 0.039 175.5)
-
Step 400
400
#77AE9F
oklch(70.8% 0.062 175.5)
-
Step 500
500
#509988
oklch(63.1% 0.078 176.6)
-
Step 600
600
#2F8471
oklch(55.7% 0.087 175.4)
-
Step 700
700
#206F5F
oklch(49% 0.08 176.4)
-
Step 800
800 (this color)
#155447
oklch(40.3% 0.066 175.9)
-
Step 900
900
#1F4B40
oklch(37.8% 0.053 174.6)
-
Step 950
950
#132C26
oklch(27.1% 0.033 176.2)
#155447 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) | #514E46 | 0.070 |
| Deuteranopia (no green cones) | #484848 | 0.066 |
| Tritanopia (no blue cones) | #005550 | 0.015 |
| Achromatopsia (no color) | #4B4B4B | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155447
#155447
oklch(40.3% 0.066 175.9)
- #65394A
#65394A
oklch(40.4% 0.066 355.8)
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 #155447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.013
- Deep Teal #00555A ΔE 0.031
- Dark Teal #014D4E ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.033
- Spruce #0A5F38 ΔE 0.050
- Pine #2B5D34 ΔE 0.051
- Dark Green Blue #1F6357 ΔE 0.051
- Evergreen #05472A ΔE 0.058
Use #155447 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.