#255599#255599

#255599 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.4% C 0.123 H 257.7°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#255599
RGB	rgb(37, 85, 153)
HSL	hsl(215, 61%, 37%)
HSV	hsv(215, 76%, 60%)
CMYK	cmyk(75.8%, 44.4%, 0%, 40%)
CIE-LAB	lab(36.35, 8.50, -41.87)
CIE-LCH	lch(36.35, 42.73, 281.48°)
OKLab	oklab(45.37% -0.0262 -0.1199)
OKLCH	oklch(45.37% 0.123 257.7)
XYZ	xyz(9.7591, 9.1891, 31.3902)
Luminance	0.0919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255599 #996925

analogous

#258F99 #255599 #2F2599

triadic

#255599 #992555 #559925

tetradic

#255599 #99258F #996925 #25992F

square

#255599 #99258F #996925 #25992F

split-complementary

#255599 #992F25 #8F9925

monochromatic

#0D1E36 #193A68 #255599 #3170CA #6092D9

Accessibility & contrast

On white

7.40

#255599 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#255599 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255599

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255599	#FFFFFF	#000000	##FFFFFF
##255599	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335B9C

Deuteranopia (green-blind)

#1D5198

Tritanopia (blue-blind)

#00656F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #255599;
/* rgb */ color: rgb(37, 85, 153);
/* oklch */ color: oklch(45.4% 0.123 257.7);

Tailwind

colors: {
  custom: {
    50: '#7084b7',
    500: '#255599',
    950: '#000000',
  },
}

SCSS

$custom: #255599;
$custom-light: #7084b7;
$custom-dark: #000000;

JSON

{
  "hex": "#255599",
  "rgb": {
    "r": 37,
    "g": 85,
    "b": 153
  },
  "hsl": {
    "h": 215.172,
    "s": 61.053,
    "l": 37.255
  },
  "oklch": {
    "l": 0.45369,
    "c": 0.12269,
    "h": 257.7
  },
  "luminance": 0.0919
}

Semantic roles & 50–950 ramp

primary

#255599

secondary

#BE955C

accent

#A244E4

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #255599

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

Preview Lab → · Contrast checker → · Palette generator →