#004F42
Closest named color: Dark Blue Green (#005249). oklch(38.2% 0.071 176.8), rgb(0, 79, 66).
Aa
White text reads best on this color (9.55:1).
About this color
#004F42 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 38%, its chroma 0.071 and its hue 177°. 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 9.55:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.19:1 |
| White text | 9.55:1 |
Values
| HEX | #004F42 |
| RGB | rgb(0, 79, 66) |
| HSL | hsl(170, 100%, 15%) |
| OKLCH | oklch(38.2% 0.071 176.8) |
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 #004F42 | 9.55:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #004F42 | 2.19:1 | Fails | Lc 12.3 | Not readable |
| #004F42 text on white | 9.55:1 | AAA | Lc 91.6 | Preferred for body text |
| #004F42 text on black | 2.19:1 | Fails | Lc -10.7 | 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 900.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDE9
oklch(93.5% 0.015 175.7)
-
Step 200
200
#C6E0D8
oklch(88.5% 0.03 175.2)
-
Step 300
300
#9DCCC0
oklch(80.9% 0.052 177.5)
-
Step 400
400
#61B29F
oklch(70.6% 0.085 176.7)
-
Step 500
500
#239F88
oklch(63.2% 0.109 176.6)
-
Step 600
600
#008772
oklch(55.7% 0.104 176.6)
-
Step 700
700
#00715F
oklch(49% 0.091 176.5)
-
Step 800
800
#005D4E
oklch(42.8% 0.079 176.7)
-
Step 900
900 (this color)
#004F42
oklch(38.2% 0.071 176.8)
-
Step 950
950
#062D26
oklch(26.8% 0.044 178.1)
#004F42 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) | #4B4941 | 0.074 |
| Deuteranopia (no green cones) | #424243 | 0.072 |
| Tritanopia (no blue cones) | #00504B | 0.015 |
| Achromatopsia (no color) | #454545 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004F42
#004F42
oklch(38.2% 0.071 176.8)
- #603244
#603244
oklch(38.2% 0.07 356.1)
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 #004F42, 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
- Dark Teal #014D4E ΔE 0.024
- Evergreen #05472A ΔE 0.040
- Deep Teal #00555A ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.043
- Pine Green #0A481E ΔE 0.053
- Charcoal #264653 ΔE 0.054
- Spruce #0A5F38 ΔE 0.062
Use #004F42 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.