#156F5F
Closest named color: Dark Aquamarine (#017371). oklch(48.7% 0.084 177.3), rgb(21, 111, 95).
Aa
White text reads best on this color (6.05:1).
About this color
#156F5F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.084 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.027 away. White text reads best on it, at 6.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.47:1 |
| White text | 6.05:1 |
Values
| HEX | #156F5F |
| RGB | rgb(21, 111, 95) |
| HSL | hsl(169, 68%, 26%) |
| OKLCH | oklch(48.7% 0.084 177.3) |
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 #156F5F | 6.05:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #156F5F | 3.47:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #156F5F text on white | 6.05:1 | AA | Lc 79.8 | Fine for body text |
| #156F5F text on black | 3.47:1 | AA large text | Lc -22.0 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#CADED9
oklch(88.4% 0.022 179.1)
-
Step 300
300
#A6CAC0
oklch(81% 0.041 176.5)
-
Step 400
400
#73AEA0
oklch(70.6% 0.065 177.7)
-
Step 500
500
#4B9A89
oklch(63.1% 0.083 177.5)
-
Step 600
600
#278473
oklch(55.5% 0.089 178)
-
Step 700
700 (this color)
#156F5F
oklch(48.7% 0.084 177.3)
-
Step 800
800
#175B4E
oklch(42.6% 0.07 177.1)
-
Step 900
900
#1C4B41
oklch(37.7% 0.054 177)
-
Step 950
950
#122C26
oklch(27% 0.034 176.7)
#156F5F 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) | #6A685E | 0.087 |
| Deuteranopia (no green cones) | #5F5F60 | 0.085 |
| Tritanopia (no blue cones) | #00716A | 0.016 |
| Achromatopsia (no color) | #636363 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #156F5F
#156F5F
oklch(48.7% 0.084 177.3)
- #854A60
#854A60
oklch(48.6% 0.084 356.9)
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 #156F5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.027
- Deep Turquoise #017374 ΔE 0.032
- Dark Aqua #05696B ΔE 0.032
- Dark Green Blue #1F6357 ΔE 0.036
- Bluegreen #017A79 ΔE 0.045
- Deep Aqua #08787F ΔE 0.051
- Petrol #005F6A ΔE 0.062
- Teal #008080 ΔE 0.062
Use #156F5F 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.