#256BB0#256BB0

#256BB0 is a mid, vivid cyan. Relative luminance 0.140; OKLCH L 52.0% C 0.129 H 251.6°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#256BB0
RGB	rgb(37, 107, 176)
HSL	hsl(210, 65%, 42%)
HSV	hsv(210, 79%, 69%)
CMYK	cmyk(79%, 39.2%, 0%, 31%)
CIE-LAB	lab(44.29, 3.26, -42.83)
CIE-LCH	lch(44.29, 42.96, 274.35°)
OKLab	oklab(52% -0.0407 -0.1223)
OKLCH	oklch(52% 0.129 251.6)
XYZ	xyz(13.8542, 14.0416, 43.0460)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#256BB0 #B06A25

analogous

#25B0B0 #256BB0 #2526B0

triadic

#256BB0 #B0256B #6BB025

tetradic

#256BB0 #B025B0 #B06A25 #26B025

square

#256BB0 #B025B0 #B06A25 #26B025

split-complementary

#256BB0 #B02526 #B0B025

monochromatic

#102E4B #1A4C7D #256BB0 #3C8AD6 #6FA8E1

Accessibility & contrast

On white

5.51

#256BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#256BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #256BB0

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##256BB0	#FFFFFF	#000000	##FFFFFF
##256BB0	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A70B3

Deuteranopia (green-blind)

#3463AF

Tritanopia (blue-blind)

#007B85

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #256bb0;
/* rgb */ color: rgb(37, 107, 176);
/* oklch */ color: oklch(52.0% 0.129 251.6);

Tailwind

colors: {
  custom: {
    50: '#7594c8',
    500: '#256bb0',
    950: '#000000',
  },
}

SCSS

$custom: #256bb0;
$custom-light: #7594c8;
$custom-dark: #000000;

JSON

{
  "hex": "#256bb0",
  "rgb": {
    "r": 37,
    "g": 107,
    "b": 176
  },
  "hsl": {
    "h": 209.784,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.51996,
    "c": 0.12889,
    "h": 251.6
  },
  "luminance": 0.14043
}

Semantic roles & 50–950 ramp

primary

#256BB0

secondary

#C7986A

accent

#9340E8

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #256BB0

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

Preview Lab → · Contrast checker → · Palette generator →