#255DB6#255DB6

#255DB6 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.2% C 0.153 H 259.5°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#255DB6
RGB	rgb(37, 93, 182)
HSL	hsl(217, 66%, 43%)
HSV	hsv(217, 80%, 71%)
CMYK	cmyk(79.7%, 48.9%, 0%, 28.6%)
CIE-LAB	lab(40.57, 14.56, -52.31)
CIE-LCH	lch(40.57, 54.30, 285.55°)
OKLab	oklab(49.23% -0.0278 -0.1504)
OKLCH	oklch(49.23% 0.153 259.5)
XYZ	xyz(13.1177, 11.5979, 45.7942)
Luminance	0.1160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255DB6 #B67E25

analogous

#25A5B6 #255DB6 #3625B6

triadic

#255DB6 #B6255D #5DB625

tetradic

#255DB6 #B625A5 #B67E25 #25B636

square

#255DB6 #B625A5 #B67E25 #25B636

split-complementary

#255DB6 #B63625 #A5B625

monochromatic

#102950 #1B4383 #255DB6 #407BD8 #739EE3

Accessibility & contrast

On white

6.33

#255DB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#255DB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255DB6

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255DB6	#FFFFFF	#000000	##FFFFFF
##255DB6	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2967B9

Deuteranopia (green-blind)

#0059B4

Tritanopia (blue-blind)

#007281

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #255db6;
/* rgb */ color: rgb(37, 93, 182);
/* oklch */ color: oklch(49.2% 0.153 259.5);

Tailwind

colors: {
  custom: {
    50: '#768acc',
    500: '#255db6',
    950: '#000000',
  },
}

SCSS

$custom: #255db6;
$custom-light: #768acc;
$custom-dark: #000000;

JSON

{
  "hex": "#255db6",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 182
  },
  "hsl": {
    "h": 216.828,
    "s": 66.21,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4923,
    "c": 0.15298,
    "h": 259.5
  },
  "luminance": 0.11599
}

Semantic roles & 50–950 ramp

primary

#255DB6

secondary

#CAA66D

accent

#A73FE9

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #255DB6

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

Preview Lab → · Contrast checker → · Palette generator →