#256D9F#256D9F

#256D9F is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.5% C 0.106 H 243.3°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#256D9F
RGB	rgb(37, 109, 159)
HSL	hsl(205, 62%, 38%)
HSV	hsv(205, 77%, 62%)
CMYK	cmyk(76.7%, 31.4%, 0%, 37.6%)
CIE-LAB	lab(43.99, -4.40, -33.32)
CIE-LCH	lch(43.99, 33.61, 262.47°)
OKLab	oklab(51.46% -0.0474 -0.0944)
OKLCH	oklch(51.46% 0.106 243.3)
XYZ	xyz(12.4872, 13.8323, 34.8060)
Luminance	0.1383 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256D9F #9F5725

analogous

#259F94 #256D9F #25309F

triadic

#256D9F #9F256D #6D9F25

tetradic

#256D9F #94259F #9F5725 #309F25

square

#256D9F #94259F #9F5725 #309F25

split-complementary

#256D9F #9F2530 #9F9425

monochromatic

#0E293C #194B6D #256D9F #328FCF #64AADB

Accessibility & contrast

On white

5.58

#256D9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#256D9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256D9F

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256D9F	#FFFFFF	#000000	##FFFFFF
##256D9F	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#566EA1

Deuteranopia (green-blind)

#45639E

Tritanopia (blue-blind)

#00797F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #256d9f;
/* rgb */ color: rgb(37, 109, 159);
/* oklch */ color: oklch(51.5% 0.106 243.3);

Tailwind

colors: {
  custom: {
    50: '#7196bb',
    500: '#256d9f',
    950: '#000000',
  },
}

SCSS

$custom: #256d9f;
$custom-light: #7196bb;
$custom-dark: #000000;

JSON

{
  "hex": "#256d9f",
  "rgb": {
    "r": 37,
    "g": 109,
    "b": 159
  },
  "hsl": {
    "h": 204.59,
    "s": 62.245,
    "l": 38.431
  },
  "oklch": {
    "l": 0.51463,
    "c": 0.10565,
    "h": 243.3
  },
  "luminance": 0.13834
}

Semantic roles & 50–950 ramp

primary

#256D9F

secondary

#C0875F

accent

#8542E5

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #256D9F

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

Preview Lab → · Contrast checker → · Palette generator →