#256C9D#256C9D

#256C9D is a mid, moderate cyan. Relative luminance 0.136; OKLCH L 51.1% C 0.104 H 243.1°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#256C9D
RGB	rgb(37, 108, 157)
HSL	hsl(205, 62%, 38%)
HSV	hsv(205, 76%, 62%)
CMYK	cmyk(76.4%, 31.2%, 0%, 38.4%)
CIE-LAB	lab(43.58, -4.54, -32.78)
CIE-LCH	lch(43.58, 33.09, 262.11°)
OKLab	oklab(51.11% -0.0471 -0.0928)
OKLCH	oklch(51.11% 0.104 243.1)
XYZ	xyz(12.2090, 13.5513, 33.8640)
Luminance	0.1355 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256C9D #9D5625

analogous

#259D92 #256C9D #25309D

triadic

#256C9D #9D256C #6C9D25

tetradic

#256C9D #92259D #9D5625 #309D25

square

#256C9D #92259D #9D5625 #309D25

split-complementary

#256C9D #9D2530 #9D9225

monochromatic

#0E283A #194A6B #256C9D #318ECE #62A9DA

Accessibility & contrast

On white

5.66

#256C9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#256C9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256C9D

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256C9D	#FFFFFF	#000000	##FFFFFF
##256C9D	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#556D9F

Deuteranopia (green-blind)

#45629C

Tritanopia (blue-blind)

#00787D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #256c9d;
/* rgb */ color: rgb(37, 108, 157);
/* oklch */ color: oklch(51.1% 0.104 243.1);

Tailwind

colors: {
  custom: {
    50: '#7195ba',
    500: '#256c9d',
    950: '#000000',
  },
}

SCSS

$custom: #256c9d;
$custom-light: #7195ba;
$custom-dark: #000000;

JSON

{
  "hex": "#256c9d",
  "rgb": {
    "r": 37,
    "g": 108,
    "b": 157
  },
  "hsl": {
    "h": 204.5,
    "s": 61.856,
    "l": 38.039
  },
  "oklch": {
    "l": 0.51107,
    "c": 0.1041,
    "h": 243.1
  },
  "luminance": 0.13553
}

Semantic roles & 50–950 ramp

primary

#256C9D

secondary

#BF865E

accent

#8543E5

background

#F7F9FB

surface

#EDF1F6

border

#C8CBD0

text

#090D11

muted

#7B7E80

Preview Lab

Preview with #256C9D

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

Preview Lab → · Contrast checker → · Palette generator →