#255BBD#255BBD

#255BBD is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.3% C 0.165 H 261.1°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#255BBD
RGB	rgb(37, 91, 189)
HSL	hsl(219, 67%, 44%)
HSV	hsv(219, 80%, 74%)
CMYK	cmyk(80.4%, 51.9%, 0%, 25.9%)
CIE-LAB	lab(40.49, 18.58, -56.54)
CIE-LCH	lch(40.49, 59.51, 288.20°)
OKLab	oklab(49.32% -0.0254 -0.1629)
OKLCH	oklch(49.32% 0.165 261.1)
XYZ	xyz(13.6860, 11.5480, 49.6419)
Luminance	0.1155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255BBD #BD8725

analogous

#25A7BD #255BBD #3B25BD

triadic

#255BBD #BD255B #5BBD25

tetradic

#255BBD #BD25A7 #BD8725 #25BD3B

square

#255BBD #BD25A7 #BD8725 #25BD3B

split-complementary

#255BBD #BD3B25 #A7BD25

monochromatic

#112A57 #1B428A #255BBD #457ADB #789EE5

Accessibility & contrast

On white

6.34

#255BBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#255BBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255BBD

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255BBD	#FFFFFF	#000000	##FFFFFF
##255BBD	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1767C1

Deuteranopia (green-blind)

#0059BB

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #255bbd;
/* rgb */ color: rgb(37, 91, 189);
/* oklch */ color: oklch(49.3% 0.165 261.1);

Tailwind

colors: {
  custom: {
    50: '#7888d2',
    500: '#255bbd',
    950: '#000000',
  },
}

SCSS

$custom: #255bbd;
$custom-light: #7888d2;
$custom-dark: #000000;

JSON

{
  "hex": "#255bbd",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 189
  },
  "hsl": {
    "h": 218.684,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.49322,
    "c": 0.16486,
    "h": 261.1
  },
  "luminance": 0.1155
}

Semantic roles & 50–950 ramp

primary

#255BBD

secondary

#CCAC72

accent

#AD3EEA

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #255BBD

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

Preview Lab → · Contrast checker → · Palette generator →