#255AA6#255AA6

#255AA6 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.4% C 0.135 H 258.0°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#255AA6
RGB	rgb(37, 90, 166)
HSL	hsl(215, 64%, 40%)
HSV	hsv(215, 78%, 65%)
CMYK	cmyk(77.7%, 45.8%, 0%, 34.9%)
CIE-LAB	lab(38.65, 10.29, -45.95)
CIE-LCH	lch(38.65, 47.09, 282.62°)
OKLab	oklab(47.42% -0.0281 -0.1318)
OKLCH	oklch(47.42% 0.135 258)
XYZ	xyz(11.2995, 10.4575, 37.4920)
Luminance	0.1046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255AA6 #A67125

analogous

#259BA6 #255AA6 #3125A6

triadic

#255AA6 #A6255A #5AA625

tetradic

#255AA6 #A6259B #A67125 #25A631

square

#255AA6 #A6259B #A67125 #25A631

split-complementary

#255AA6 #A63125 #9BA625

monochromatic

#0F2442 #1A3F74 #255AA6 #3676D2 #6898DD

Accessibility & contrast

On white

6.79

#255AA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#255AA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255AA6

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255AA6	#FFFFFF	#000000	##FFFFFF
##255AA6	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3261A9

Deuteranopia (green-blind)

#1656A4

Tritanopia (blue-blind)

#006C78

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #255aa6;
/* rgb */ color: rgb(37, 90, 166);
/* oklch */ color: oklch(47.4% 0.135 258.0);

Tailwind

colors: {
  custom: {
    50: '#7388c1',
    500: '#255aa6',
    950: '#000000',
  },
}

SCSS

$custom: #255aa6;
$custom-light: #7388c1;
$custom-dark: #000000;

JSON

{
  "hex": "#255aa6",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 166
  },
  "hsl": {
    "h": 215.349,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47416,
    "c": 0.13473,
    "h": 258
  },
  "luminance": 0.10459
}

Semantic roles & 50–950 ramp

primary

#255AA6

secondary

#C39C64

accent

#A341E7

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255AA6

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

Preview Lab → · Contrast checker → · Palette generator →