#255AB2#255AB2

#255AB2 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.3% C 0.151 H 260.1°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#255AB2
RGB	rgb(37, 90, 178)
HSL	hsl(217, 66%, 42%)
HSV	hsv(217, 79%, 70%)
CMYK	cmyk(79.2%, 49.4%, 0%, 30.2%)
CIE-LAB	lab(39.44, 14.97, -51.78)
CIE-LCH	lch(39.44, 53.90, 286.12°)
OKLab	oklab(48.28% -0.0261 -0.1489)
OKLCH	oklch(48.28% 0.151 260.1)
XYZ	xyz(12.4521, 10.9185, 43.5621)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255AB2 #B27D25

analogous

#25A0B2 #255AB2 #3725B2

triadic

#255AB2 #B2255A #5AB225

tetradic

#255AB2 #B225A0 #B27D25 #25B237

square

#255AB2 #B225A0 #B27D25 #25B237

split-complementary

#255AB2 #B23725 #A0B225

monochromatic

#10274D #1A407F #255AB2 #3D77D7 #709BE1

Accessibility & contrast

On white

6.60

#255AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#255AB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255AB2

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255AB2	#FFFFFF	#000000	##FFFFFF
##255AB2	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2664B5

Deuteranopia (green-blind)

#0057B0

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #255ab2;
/* rgb */ color: rgb(37, 90, 178);
/* oklch */ color: oklch(48.3% 0.151 260.1);

Tailwind

colors: {
  custom: {
    50: '#7688ca',
    500: '#255ab2',
    950: '#000000',
  },
}

SCSS

$custom: #255ab2;
$custom-light: #7688ca;
$custom-dark: #000000;

JSON

{
  "hex": "#255ab2",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 178
  },
  "hsl": {
    "h": 217.447,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.48279,
    "c": 0.15118,
    "h": 260.1
  },
  "luminance": 0.1092
}

Semantic roles & 50–950 ramp

primary

#255AB2

secondary

#C8A56B

accent

#A93FE9

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #255AB2

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

Preview Lab → · Contrast checker → · Palette generator →