#02574F
Closest named color: Dark Blue Green (#005249). oklch(41.1% 0.072 184.1), rgb(2, 87, 79).
Aa
White text reads best on this color (8.47:1).
About this color
#02574F is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 41%, its chroma 0.072 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.017 away. White text reads best on it, at 8.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.47:1 |
| White text | 8.47:1 |
Values
| HEX | #02574F |
| RGB | rgb(2, 87, 79) |
| HSL | hsl(174, 96%, 17%) |
| OKLCH | oklch(41.1% 0.072 184.1) |
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 #02574F | 8.47:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #02574F | 2.47:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #02574F text on white | 8.47:1 | AAA | Lc 88.7 | Fine for body text |
| #02574F text on black | 2.47:1 | Fails | Lc -13.5 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C9DEDB
oklch(88.4% 0.023 186.4)
-
Step 300
300
#A3CAC4
oklch(80.9% 0.042 184.9)
-
Step 400
400
#6FAFA5
oklch(70.8% 0.068 183.4)
-
Step 500
500
#429A8F
oklch(63% 0.086 184.2)
-
Step 600
600
#16857A
oklch(55.7% 0.094 184.4)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800 (this color)
#02574F
oklch(41.1% 0.072 184.1)
-
Step 900
900
#164B45
oklch(37.6% 0.056 184.6)
-
Step 950
950
#0F2C28
oklch(27% 0.036 183.4)
#02574F 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) | #52514F | 0.077 |
| Deuteranopia (no green cones) | #484A50 | 0.072 |
| Tritanopia (no blue cones) | #005954 | 0.009 |
| Achromatopsia (no color) | #4D4D4D | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02574F
#02574F
oklch(41.1% 0.072 184.1)
- #6B3946
#6B3946
oklch(41.1% 0.072 4.1)
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 #02574F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.017
- Deep Teal #00555A ΔE 0.022
- Dark Teal #014D4E ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.044
- Petrol #005F6A ΔE 0.046
- Spruce #0A5F38 ΔE 0.052
- Pine #2B5D34 ΔE 0.055
Use #02574F 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.