#156661
Closest named color: Dark Green Blue (#1F6357). oklch(46.3% 0.074 188.6), rgb(21, 102, 97).
Aa
White text reads best on this color (6.76:1).
About this color
#156661 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.074 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.016 away. White text reads best on it, at 6.76:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.10:1 |
| White text | 6.76:1 |
Values
| HEX | #156661 |
| RGB | rgb(21, 102, 97) |
| HSL | hsl(176, 66%, 24%) |
| OKLCH | oklch(46.3% 0.074 188.6) |
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 #156661 | 6.76:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #156661 | 3.10:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #156661 text on white | 6.76:1 | AA | Lc 83.0 | Fine for body text |
| #156661 text on black | 3.10:1 | AA large text | Lc -19.0 | 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
#A7C8C5
oklch(80.8% 0.036 189.7)
-
Step 400
400
#77ADA7
oklch(70.8% 0.058 187.3)
-
Step 500
500
#509892
oklch(63.1% 0.073 188.4)
-
Step 600
600
#2F827C
oklch(55.5% 0.08 188.4)
-
Step 700
700 (this color)
#156661
oklch(46.3% 0.074 188.6)
-
Step 800
800
#1E5A56
oklch(42.8% 0.061 188.9)
-
Step 900
900
#1F4A47
oklch(37.8% 0.048 189.2)
-
Step 950
950
#132B29
oklch(26.9% 0.03 188.5)
#156661 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) | #606061 | 0.079 |
| Deuteranopia (no green cones) | #555862 | 0.074 |
| Tritanopia (no blue cones) | #006964 | 0.010 |
| Achromatopsia (no color) | #5B5B5B | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #156661
#156661
oklch(46.3% 0.074 188.6)
- #7C4750
#7C4750
oklch(46.3% 0.073 9.4)
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 #156661, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.016
- Dark Aqua #05696B ΔE 0.016
- Petrol #005F6A ΔE 0.032
- Dark Aquamarine #017371 ΔE 0.041
- Deep Turquoise #017374 ΔE 0.043
- Deep Teal #00555A ΔE 0.057
- Deep Aqua #08787F ΔE 0.063
- Bluegreen #017A79 ΔE 0.064
Use #156661 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.