#005B4D
Closest named color: Dark Blue Green (#005249). oklch(42.1% 0.078 177.5), rgb(0, 91, 77).
Aa
White text reads best on this color (8.06:1).
About this color
#005B4D is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.078 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.029 away. White text reads best on it, at 8.06:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.60:1 |
| White text | 8.06:1 |
Values
| HEX | #005B4D |
| RGB | rgb(0, 91, 77) |
| HSL | hsl(171, 100%, 18%) |
| OKLCH | oklch(42.1% 0.078 177.5) |
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 #005B4D | 8.06:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #005B4D | 2.60:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #005B4D text on white | 8.06:1 | AAA | Lc 87.4 | Fine for body text |
| #005B4D text on black | 2.60:1 | Fails | Lc -14.7 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C8DFD9
oklch(88.5% 0.026 178.3)
-
Step 300
300
#A2CBC0
oklch(80.9% 0.046 176.9)
-
Step 400
400
#6DB0A0
oklch(70.8% 0.073 177.2)
-
Step 500
500
#3E9C89
oklch(63.1% 0.093 177.5)
-
Step 600
600
#088673
oklch(55.5% 0.101 177.9)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800 (this color)
#005B4D
oklch(42.1% 0.078 177.5)
-
Step 900
900
#134C41
oklch(37.7% 0.061 177.2)
-
Step 950
950
#0E2D26
oklch(27.1% 0.039 176)
#005B4D 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) | #57544C | 0.082 |
| Deuteranopia (no green cones) | #4C4D4E | 0.077 |
| Tritanopia (no blue cones) | #005D57 | 0.016 |
| Achromatopsia (no color) | #505050 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B4D
#005B4D
oklch(42.1% 0.078 177.5)
- #6F3A4E
#6F3A4E
oklch(42.1% 0.079 357)
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 #005B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.029
- Dark Green Blue #1F6357 ΔE 0.033
- Deep Teal #00555A ΔE 0.034
- Spruce #0A5F38 ΔE 0.039
- Pine #2B5D34 ΔE 0.044
- Petrol #005F6A ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.047
- Dark Teal #014D4E ΔE 0.048
Use #005B4D 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.