#256DB2#256DB2

#256DB2 is a mid, vivid cyan. Relative luminance 0.145; OKLCH L 52.6% C 0.129 H 251.0°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#256DB2
RGB	rgb(37, 109, 178)
HSL	hsl(209, 66%, 42%)
HSV	hsv(209, 79%, 70%)
CMYK	cmyk(79.2%, 38.8%, 0%, 30.2%)
CIE-LAB	lab(45.00, 2.77, -42.87)
CIE-LCH	lch(45.00, 42.96, 273.70°)
OKLab	oklab(52.59% -0.042 -0.1224)
OKLCH	oklch(52.59% 0.129 251)
XYZ	xyz(14.2644, 14.5432, 44.1662)
Luminance	0.1454 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256DB2 #B26A25

analogous

#25B2B1 #256DB2 #2526B2

triadic

#256DB2 #B2256D #6DB225

tetradic

#256DB2 #B125B2 #B26A25 #26B225

square

#256DB2 #B125B2 #B26A25 #26B225

split-complementary

#256DB2 #B22526 #B2B125

monochromatic

#102F4D #1A4E7F #256DB2 #3D8CD7 #70AAE1

Accessibility & contrast

On white

5.37

#256DB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#256DB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256DB2

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256DB2	#FFFFFF	#000000	##FFFFFF
##256DB2	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C71B5

Deuteranopia (green-blind)

#3665B1

Tritanopia (blue-blind)

#007D87

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #256db2;
/* rgb */ color: rgb(37, 109, 178);
/* oklch */ color: oklch(52.6% 0.129 251.0);

Tailwind

colors: {
  custom: {
    50: '#7596c9',
    500: '#256db2',
    950: '#000000',
  },
}

SCSS

$custom: #256db2;
$custom-light: #7596c9;
$custom-dark: #000000;

JSON

{
  "hex": "#256db2",
  "rgb": {
    "r": 37,
    "g": 109,
    "b": 178
  },
  "hsl": {
    "h": 209.362,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.52588,
    "c": 0.12937,
    "h": 251
  },
  "luminance": 0.14545
}

Semantic roles & 50–950 ramp

primary

#256DB2

secondary

#C8986B

accent

#923FE9

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #256DB2

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

Preview Lab → · Contrast checker → · Palette generator →