#004F59
Closest named color: Dark Teal (#014D4E). oklch(39.2% 0.068 209.4), rgb(0, 79, 89).
Aa
White text reads best on this color (9.28:1).
About this color
#004F59 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.068 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.019 away. White text reads best on it, at 9.28:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.26:1 |
| White text | 9.28:1 |
Values
| HEX | #004F59 |
| RGB | rgb(0, 79, 89) |
| HSL | hsl(187, 100%, 17%) |
| OKLCH | oklch(39.2% 0.068 209.4) |
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 #004F59 | 9.28:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #004F59 | 2.26:1 | Fails | Lc 13.0 | Not readable |
| #004F59 text on white | 9.28:1 | AAA | Lc 90.9 | Preferred for body text |
| #004F59 text on black | 2.26:1 | Fails | Lc -11.4 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C5DFE3
oklch(88.6% 0.028 207.8)
-
Step 300
300
#9BCAD2
oklch(80.8% 0.05 209.1)
-
Step 400
400
#5EAFBC
oklch(70.8% 0.081 209)
-
Step 500
500
#1C9AAB
oklch(63.1% 0.103 209.3)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900 (this color)
#004F59
oklch(39.2% 0.068 209.4)
-
Step 950
950
#052C32
oklch(27% 0.043 210.1)
#004F59 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) | #464C5A | 0.063 |
| Deuteranopia (no green cones) | #3C4459 | 0.058 |
| Tritanopia (no blue cones) | #005352 | 0.021 |
| Achromatopsia (no color) | #474747 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004F59
#004F59
oklch(39.2% 0.068 209.4)
- #653730
#653730
oklch(39.3% 0.067 29.6)
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 #004F59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.019
- Deep Teal #00555A ΔE 0.020
- Dark Blue Green #005249 ΔE 0.032
- Charcoal #264653 ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.038
- Petrol #005F6A ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.063
Use #004F59 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.