#256B5B#256B5B

#256B5B is a mid, moderate teal. Relative luminance 0.117; OKLCH L 47.9% C 0.074 H 175.1°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#256B5B
RGB	rgb(37, 107, 91)
HSL	hsl(166, 49%, 28%)
HSV	hsv(166, 65%, 42%)
CMYK	cmyk(65.4%, 0%, 15%, 58%)
CIE-LAB	lab(40.68, -26.01, 2.55)
CIE-LCH	lch(40.68, 26.14, 174.40°)
OKLab	oklab(47.92% -0.0741 0.0064)
OKLCH	oklch(47.92% 0.074 175.1)
XYZ	xyz(7.9081, 11.6632, 11.7300)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256B5B #6B2535

analogous

#256B38 #256B5B #25586B

triadic

#256B5B #5B256B #6B5B25

tetradic

#256B5B #38256B #6B2535 #586B25

square

#256B5B #38256B #6B2535 #586B25

split-complementary

#256B5B #6B2558 #6B3825

monochromatic

#081713 #153E34 #256B5B #359882 #4AC0A5

Accessibility & contrast

On white

6.30

#256B5B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#256B5B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256B5B

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256B5B	#FFFFFF	#000000	##FFFFFF
##256B5B	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67645A

Deuteranopia (green-blind)

#5D5D5C

Tritanopia (blue-blind)

#006C66

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #256b5b;
/* rgb */ color: rgb(37, 107, 91);
/* oklch */ color: oklch(47.9% 0.074 175.1);

Tailwind

colors: {
  custom: {
    50: '#689689',
    500: '#256b5b',
    950: '#000000',
  },
}

SCSS

$custom: #256b5b;
$custom-light: #689689;
$custom-dark: #000000;

JSON

{
  "hex": "#256b5b",
  "rgb": {
    "r": 37,
    "g": 107,
    "b": 91
  },
  "hsl": {
    "h": 166.286,
    "s": 48.611,
    "l": 28.235
  },
  "oklch": {
    "l": 0.47921,
    "c": 0.07438,
    "h": 175.1
  },
  "luminance": 0.11664
}

Semantic roles & 50–950 ramp

primary

#256B5B

secondary

#9E4E60

accent

#506FD8

background

#F6F9F8

surface

#EBF2F0

border

#C6CCCB

text

#070D0B

muted

#7A7E7C

Preview Lab

Preview with #256B5B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →