#256C7B#256C7B

#256C7B is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 49.4% C 0.073 H 214.4°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#256C7B
RGB	rgb(37, 108, 123)
HSL	hsl(190, 54%, 31%)
HSV	hsv(190, 70%, 48%)
CMYK	cmyk(69.9%, 12.2%, 0%, 51.8%)
CIE-LAB	lab(42.07, -16.66, -14.77)
CIE-LCH	lch(42.07, 22.27, 221.56°)
OKLab	oklab(49.41% -0.0599 -0.0411)
OKLCH	oklch(49.41% 0.073 214.4)
XYZ	xyz(9.6992, 12.5474, 20.6458)
Luminance	0.1255 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256C7B #7B3425

analogous

#257B5F #256C7B #25417B

triadic

#256C7B #7B256C #6C7B25

tetradic

#256C7B #5F257B #7B3425 #417B25

square

#256C7B #5F257B #7B3425 #417B25

split-complementary

#256C7B #7B2541 #7B5F25

monochromatic

#09191D #17434C #256C7B #3395AA #50B5CA

Accessibility & contrast

On white

5.98

#256C7B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#256C7B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256C7B

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256C7B	#FFFFFF	#000000	##FFFFFF
##256C7B	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61687C

Deuteranopia (green-blind)

#555F7B

Tritanopia (blue-blind)

#007271

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #256c7b;
/* rgb */ color: rgb(37, 108, 123);
/* oklch */ color: oklch(49.4% 0.073 214.4);

Tailwind

colors: {
  custom: {
    50: '#6c96a1',
    500: '#256c7b',
    950: '#000000',
  },
}

SCSS

$custom: #256c7b;
$custom-light: #6c96a1;
$custom-dark: #000000;

JSON

{
  "hex": "#256c7b",
  "rgb": {
    "r": 37,
    "g": 108,
    "b": 123
  },
  "hsl": {
    "h": 190.465,
    "s": 53.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.49406,
    "c": 0.07269,
    "h": 214.4
  },
  "luminance": 0.12548
}

Semantic roles & 50–950 ramp

primary

#256C7B

secondary

#AD5F4F

accent

#644BDD

background

#F6F9F9

surface

#ECF2F2

border

#C7CCCC

text

#070D0F

muted

#7A7E7E

Preview Lab

Preview with #256C7B

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

Preview Lab → · Contrast checker → · Palette generator →