#255B9C#255B9C

#255B9C is a mid, moderate cyan. Relative luminance 0.103; OKLCH L 47.0% C 0.120 H 255.0°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#255B9C
RGB	rgb(37, 91, 156)
HSL	hsl(213, 62%, 38%)
HSV	hsv(213, 76%, 61%)
CMYK	cmyk(76.3%, 41.7%, 0%, 38.8%)
CIE-LAB	lab(38.33, 5.75, -40.50)
CIE-LCH	lch(38.33, 40.91, 278.08°)
OKLab	oklab(46.97% -0.0311 -0.1157)
OKLCH	oklch(46.97% 0.12 255)
XYZ	xyz(10.5026, 10.2746, 32.8757)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B9C #9C6625

analogous

#25969C #255B9C #2A259C

triadic

#255B9C #9C255B #5B9C25

tetradic

#255B9C #9C2596 #9C6625 #259C2A

square

#255B9C #9C2596 #9C6625 #259C2A

split-complementary

#255B9C #9C2A25 #969C25

monochromatic

#0E2139 #193E6B #255B9C #3178CD #6298DA

Accessibility & contrast

On white

6.87

#255B9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#255B9C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255B9C

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B9C	#FFFFFF	#000000	##FFFFFF
##255B9C	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C609F

Deuteranopia (green-blind)

#28559B

Tritanopia (blue-blind)

#006A74

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #255b9c;
/* rgb */ color: rgb(37, 91, 156);
/* oklch */ color: oklch(47.0% 0.120 255.0);

Tailwind

colors: {
  custom: {
    50: '#7188b9',
    500: '#255b9c',
    950: '#000000',
  },
}

SCSS

$custom: #255b9c;
$custom-light: #7188b9;
$custom-dark: #000000;

JSON

{
  "hex": "#255b9c",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 156
  },
  "hsl": {
    "h": 212.773,
    "s": 61.658,
    "l": 37.843
  },
  "oklch": {
    "l": 0.46968,
    "c": 0.11982,
    "h": 255
  },
  "luminance": 0.10276
}

Semantic roles & 50–950 ramp

primary

#255B9C

secondary

#BF935E

accent

#9B43E5

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #255B9C

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

Preview Lab → · Contrast checker → · Palette generator →