#055D4E
Closest named color: Dark Green Blue (#1F6357). oklch(42.8% 0.078 176.4), rgb(5, 93, 78).
Aa
White text reads best on this color (7.82:1).
About this color
#055D4E is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 43%, its chroma 0.078 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.027 away. White text reads best on it, at 7.82:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #055D4E |
| RGB | rgb(5, 93, 78) |
| HSL | hsl(170, 90%, 19%) |
| OKLCH | oklch(42.8% 0.078 176.4) |
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 #055D4E | 7.82:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #055D4E | 2.68:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #055D4E text on white | 7.82:1 | AAA | Lc 86.7 | Fine for body text |
| #055D4E text on black | 2.68:1 | Fails | Lc -15.4 | 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 800.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C9DFD8
oklch(88.5% 0.025 174.7)
-
Step 300
300
#A2CBC0
oklch(80.9% 0.046 176.9)
-
Step 400
400
#6DB09F
oklch(70.7% 0.073 176.1)
-
Step 500
500
#3F9C88
oklch(63.1% 0.093 176.6)
-
Step 600
600
#0B8671
oklch(55.5% 0.101 176.2)
-
Step 700
700
#00715F
oklch(49% 0.091 176.5)
-
Step 800
800 (this color)
#055D4E
oklch(42.8% 0.078 176.4)
-
Step 900
900
#144C41
oklch(37.7% 0.06 177.1)
-
Step 950
950
#0E2D26
oklch(27.1% 0.039 176)
#055D4E 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) | #59564D | 0.082 |
| Deuteranopia (no green cones) | #4F4F4F | 0.078 |
| Tritanopia (no blue cones) | #005E59 | 0.017 |
| Achromatopsia (no color) | #525252 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055D4E
#055D4E
oklch(42.8% 0.078 176.4)
- #713C50
#713C50
oklch(42.9% 0.078 356.9)
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 #055D4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.027
- Dark Blue Green #005249 ΔE 0.036
- Spruce #0A5F38 ΔE 0.037
- Deep Teal #00555A ΔE 0.039
- Pine #2B5D34 ΔE 0.041
- Petrol #005F6A ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.051
- Dark Aqua #05696B ΔE 0.053
Use #055D4E 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.