#256399#256399

#256399 is a mid, moderate cyan. Relative luminance 0.116; OKLCH L 48.7% C 0.107 H 248.4°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#256399
RGB	rgb(37, 99, 153)
HSL	hsl(208, 61%, 37%)
HSV	hsv(208, 76%, 60%)
CMYK	cmyk(75.8%, 35.3%, 0%, 40%)
CIE-LAB	lab(40.60, -0.50, -35.10)
CIE-LCH	lch(40.60, 35.11, 269.18°)
OKLab	oklab(48.69% -0.0395 -0.0998)
OKLCH	oklch(48.69% 0.107 248.4)
XYZ	xyz(10.9724, 11.6156, 31.7946)
Luminance	0.1162 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256399 #995B25

analogous

#259995 #256399 #252999

triadic

#256399 #992563 #639925

tetradic

#256399 #952599 #995B25 #299925

square

#256399 #952599 #995B25 #299925

split-complementary

#256399 #992529 #999525

monochromatic

#0D2336 #194368 #256399 #3183CA #60A0D9

Accessibility & contrast

On white

6.32

#256399 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#256399 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256399

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256399	#FFFFFF	#000000	##FFFFFF
##256399	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A669B

Deuteranopia (green-blind)

#395B98

Tritanopia (blue-blind)

#007077

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #256399;
/* rgb */ color: rgb(37, 99, 153);
/* oklch */ color: oklch(48.7% 0.107 248.4);

Tailwind

colors: {
  custom: {
    50: '#708fb7',
    500: '#256399',
    950: '#000000',
  },
}

SCSS

$custom: #256399;
$custom-light: #708fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#256399",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 153
  },
  "hsl": {
    "h": 207.931,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.48687,
    "c": 0.1073,
    "h": 248.4
  },
  "luminance": 0.11617
}

Semantic roles & 50–950 ramp

primary

#256399

secondary

#BE8A5C

accent

#8E44E4

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C11

muted

#7B7D80

Preview Lab

Preview with #256399

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

Preview Lab → · Contrast checker → · Palette generator →