#256C99#256C99

#256C99 is a mid, moderate cyan. Relative luminance 0.134; OKLCH L 50.9% C 0.099 H 240.9°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#256C99
RGB	rgb(37, 108, 153)
HSL	hsl(203, 61%, 37%)
HSV	hsv(203, 76%, 60%)
CMYK	cmyk(75.8%, 29.4%, 0%, 40%)
CIE-LAB	lab(43.38, -6.02, -30.72)
CIE-LCH	lch(43.38, 31.30, 258.90°)
OKLab	oklab(50.89% -0.0484 -0.0869)
OKLCH	oklch(50.89% 0.099 240.9)
XYZ	xyz(11.8730, 13.4170, 32.0948)
Luminance	0.1342 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256C99 #995225

analogous

#25998C #256C99 #253299

triadic

#256C99 #99256C #6C9925

tetradic

#256C99 #8C2599 #995225 #329925

square

#256C99 #8C2599 #995225 #329925

split-complementary

#256C99 #992532 #998C25

monochromatic

#0D2636 #194968 #256C99 #318FCA #60AAD9

Accessibility & contrast

On white

5.70

#256C99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#256C99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256C99

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256C99	#FFFFFF	#000000	##FFFFFF
##256C99	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576D9B

Deuteranopia (green-blind)

#476298

Tritanopia (blue-blind)

#00777C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #256c99;
/* rgb */ color: rgb(37, 108, 153);
/* oklch */ color: oklch(50.9% 0.099 240.9);

Tailwind

colors: {
  custom: {
    50: '#7095b7',
    500: '#256c99',
    950: '#000000',
  },
}

SCSS

$custom: #256c99;
$custom-light: #7095b7;
$custom-dark: #000000;

JSON

{
  "hex": "#256c99",
  "rgb": {
    "r": 37,
    "g": 108,
    "b": 153
  },
  "hsl": {
    "h": 203.276,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.50885,
    "c": 0.09943,
    "h": 240.9
  },
  "luminance": 0.13418
}

Semantic roles & 50–950 ramp

primary

#256C99

secondary

#BE825C

accent

#8244E4

background

#F7F9FB

surface

#EDF1F6

border

#C8CBD0

text

#090D11

muted

#7B7E80

Preview Lab

Preview with #256C99

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

Preview Lab → · Contrast checker → · Palette generator →