#2A7570
Closest named color: Dark Aquamarine (#017371). oklch(51.5% 0.073 189), rgb(42, 117, 112).
Aa
White text reads best on this color (5.41:1).
About this color
#2A7570 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.073 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.019 away. White text reads best on it, at 5.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #2A7570 |
| RGB | rgb(42, 117, 112) |
| HSL | hsl(176, 47%, 31%) |
| OKLCH | oklch(51.5% 0.073 189) |
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 #2A7570 | 5.41:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #2A7570 | 3.87:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #2A7570 text on white | 5.41:1 | AA | Lc 76.8 | Fine for body text |
| #2A7570 text on black | 3.87:1 | AA large text | Lc -25.0 | 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 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CBDEDC
oklch(88.6% 0.02 189.2)
-
Step 300
300
#A8C8C5
oklch(80.8% 0.035 189.5)
-
Step 400
400
#77ACA8
oklch(70.6% 0.056 190)
-
Step 500
500
#509892
oklch(63.1% 0.073 188.4)
-
Step 600
600
#30827D
oklch(55.6% 0.079 189.5)
-
Step 700
700 (this color)
#2A7570
oklch(51.5% 0.073 189)
-
Step 800
800
#1E5A56
oklch(42.8% 0.061 188.9)
-
Step 900
900
#204A47
oklch(37.8% 0.047 189.2)
-
Step 950
950
#142B29
oklch(26.9% 0.029 188.3)
#2A7570 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) | #6F6F70 | 0.078 |
| Deuteranopia (no green cones) | #636671 | 0.074 |
| Tritanopia (no blue cones) | #007873 | 0.016 |
| Achromatopsia (no color) | #6A6A6A | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A7570
#2A7570
oklch(51.5% 0.073 189)
- #8C555F
#8C555F
oklch(51.5% 0.074 8.2)
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 #2A7570, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.019
- Deep Turquoise #017374 ΔE 0.019
- Bluegreen #017A79 ΔE 0.020
- Deep Aqua #08787F ΔE 0.024
- Teal #008080 ΔE 0.035
- Dark Aqua #05696B ΔE 0.044
- Ocean #017B92 ΔE 0.052
- Slate #516572 ΔE 0.060
Use #2A7570 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.