#256B9B#256B9B

#256B9B is a mid, moderate cyan. Relative luminance 0.133; OKLCH L 50.7% C 0.103 H 242.9°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#256B9B
RGB	rgb(37, 107, 155)
HSL	hsl(204, 61%, 38%)
HSV	hsv(204, 76%, 61%)
CMYK	cmyk(76.1%, 31%, 0%, 39.2%)
CIE-LAB	lab(43.17, -4.68, -32.23)
CIE-LCH	lch(43.17, 32.57, 261.74°)
OKLab	oklab(50.75% -0.0467 -0.0913)
OKLCH	oklch(50.75% 0.103 242.9)
XYZ	xyz(11.9347, 13.2739, 32.9371)
Luminance	0.1328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256B9B #9B5525

analogous

#259B90 #256B9B #25309B

triadic

#256B9B #9B256B #6B9B25

tetradic

#256B9B #90259B #9B5525 #309B25

square

#256B9B #90259B #9B5525 #309B25

split-complementary

#256B9B #9B2530 #9B9025

monochromatic

#0D2738 #19496A #256B9B #318DCC #61A8D9

Accessibility & contrast

On white

5.75

#256B9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#256B9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256B9B

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256B9B	#FFFFFF	#000000	##FFFFFF
##256B9B	1.00	5.75	3.66	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#556C9D

Deuteranopia (green-blind)

#44619A

Tritanopia (blue-blind)

#00777C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #256b9b;
/* rgb */ color: rgb(37, 107, 155);
/* oklch */ color: oklch(50.7% 0.103 242.9);

Tailwind

colors: {
  custom: {
    50: '#7195b8',
    500: '#256b9b',
    950: '#000000',
  },
}

SCSS

$custom: #256b9b;
$custom-light: #7195b8;
$custom-dark: #000000;

JSON

{
  "hex": "#256b9b",
  "rgb": {
    "r": 37,
    "g": 107,
    "b": 155
  },
  "hsl": {
    "h": 204.407,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.5075,
    "c": 0.10256,
    "h": 242.9
  },
  "luminance": 0.13275
}

Semantic roles & 50–950 ramp

primary

#256B9B

secondary

#BF855D

accent

#8543E5

background

#F7F9FB

surface

#EDF1F6

border

#C8CBD0

text

#090D11

muted

#7B7E80

Preview Lab

Preview with #256B9B

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

Preview Lab → · Contrast checker → · Palette generator →