#005F57
Closest named color: Dark Green Blue (#1F6357). oklch(43.7% 0.077 184.9), rgb(0, 95, 87).
Aa
White text reads best on this color (7.56:1).
About this color
#005F57 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.077 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.020 away. White text reads best on it, at 7.56:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.77:1 |
| White text | 7.56:1 |
Values
| HEX | #005F57 |
| RGB | rgb(0, 95, 87) |
| HSL | hsl(175, 100%, 19%) |
| OKLCH | oklch(43.7% 0.077 184.9) |
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 #005F57 | 7.56:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #005F57 | 2.77:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #005F57 text on white | 7.56:1 | AAA | Lc 85.8 | Fine for body text |
| #005F57 text on black | 2.77:1 | Fails | Lc -16.3 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C8DFDB
oklch(88.5% 0.025 184.2)
-
Step 300
300
#A1CBC4
oklch(81% 0.045 183.9)
-
Step 400
400
#6AB0A6
oklch(70.8% 0.073 184.2)
-
Step 500
500
#399B91
oklch(63% 0.092 185.7)
-
Step 600
600
#00867B
oklch(55.7% 0.098 184.8)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800 (this color)
#005F57
oklch(43.7% 0.077 184.9)
-
Step 900
900
#0F4C46
oklch(37.8% 0.06 185.2)
-
Step 950
950
#0C2C29
oklch(26.9% 0.038 186.7)
#005F57 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) | #595957 | 0.081 |
| Deuteranopia (no green cones) | #4E5158 | 0.076 |
| Tritanopia (no blue cones) | #00615C | 0.009 |
| Achromatopsia (no color) | #545454 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005F57
#005F57
oklch(43.7% 0.077 184.9)
- #753E4C
#753E4C
oklch(43.6% 0.078 4.5)
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 #005F57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.020
- Petrol #005F6A ΔE 0.032
- Deep Teal #00555A ΔE 0.036
- Dark Aqua #05696B ΔE 0.040
- Dark Blue Green #005249 ΔE 0.044
- Spruce #0A5F38 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.053
- Pine #2B5D34 ΔE 0.053
Use #005F57 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.