#156E5B
Closest named color: Dark Aquamarine (#017371). oklch(48.3% 0.085 174.2), rgb(21, 110, 91).
Aa
White text reads best on this color (6.15:1).
About this color
#156E5B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.085 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.033 away. White text reads best on it, at 6.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.41:1 |
| White text | 6.15:1 |
Values
| HEX | #156E5B |
| RGB | rgb(21, 110, 91) |
| HSL | hsl(167, 68%, 26%) |
| OKLCH | oklch(48.3% 0.085 174.2) |
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 #156E5B | 6.15:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #156E5B | 3.41:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #156E5B text on white | 6.15:1 | AA | Lc 80.3 | Fine for body text |
| #156E5B text on black | 3.41:1 | AA large text | Lc -21.5 | 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
#E2EDE9
oklch(93.7% 0.013 172.4)
-
Step 200
200
#CBDED8
oklch(88.5% 0.022 174.9)
-
Step 300
300
#A6CABF
oklch(81% 0.041 174.7)
-
Step 400
400
#74AE9E
oklch(70.6% 0.065 175.1)
-
Step 500
500
#4B9A86
oklch(63% 0.084 174.7)
-
Step 600
600
#28856F
oklch(55.7% 0.093 173.7)
-
Step 700
700 (this color)
#156E5B
oklch(48.3% 0.085 174.2)
-
Step 800
800
#195B4C
oklch(42.6% 0.07 174.5)
-
Step 900
900
#1C4B3F
oklch(37.6% 0.055 173.8)
-
Step 950
950
#122C25
oklch(27% 0.035 173.9)
#156E5B 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) | #6A665A | 0.089 |
| Deuteranopia (no green cones) | #5E5E5C | 0.084 |
| Tritanopia (no blue cones) | #006F68 | 0.020 |
| Achromatopsia (no color) | #616161 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #156E5B
#156E5B
oklch(48.3% 0.085 174.2)
- #844962
#844962
oklch(48.4% 0.086 353.9)
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 #156E5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.033
- Dark Green Blue #1F6357 ΔE 0.034
- Dark Aqua #05696B ΔE 0.035
- Deep Turquoise #017374 ΔE 0.038
- Bluegreen #017A79 ΔE 0.051
- Deep Aqua #08787F ΔE 0.057
- Petrol #005F6A ΔE 0.062
- Spruce #0A5F38 ΔE 0.063
Use #156E5B 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.