#255BA5#255BA5

#255BA5 is a mid, vivid cyan. Relative luminance 0.106; OKLCH L 47.6% C 0.132 H 257.3°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#255BA5
RGB	rgb(37, 91, 165)
HSL	hsl(215, 63%, 40%)
HSV	hsv(215, 78%, 65%)
CMYK	cmyk(77.6%, 44.8%, 0%, 35.3%)
CIE-LAB	lab(38.88, 9.24, -44.99)
CIE-LCH	lch(38.88, 45.93, 281.61°)
OKLab	oklab(47.58% -0.0292 -0.1289)
OKLCH	oklch(47.58% 0.132 257.3)
XYZ	xyz(11.2931, 10.5908, 37.0391)
Luminance	0.1059 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255BA5 #A56F25

analogous

#259BA5 #255BA5 #2F25A5

triadic

#255BA5 #A5255B #5BA525

tetradic

#255BA5 #A5259B #A56F25 #25A52F

square

#255BA5 #A5259B #A56F25 #25A52F

split-complementary

#255BA5 #A52F25 #9BA525

monochromatic

#0F2441 #1A3F73 #255BA5 #3577D2 #6799DD

Accessibility & contrast

On white

6.73

#255BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#255BA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255BA5

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255BA5	#FFFFFF	#000000	##FFFFFF
##255BA5	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3562A8

Deuteranopia (green-blind)

#1B56A4

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #255ba5;
/* rgb */ color: rgb(37, 91, 165);
/* oklch */ color: oklch(47.6% 0.132 257.3);

Tailwind

colors: {
  custom: {
    50: '#7388c0',
    500: '#255ba5',
    950: '#000000',
  },
}

SCSS

$custom: #255ba5;
$custom-light: #7388c0;
$custom-dark: #000000;

JSON

{
  "hex": "#255ba5",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 165
  },
  "hsl": {
    "h": 214.688,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.47575,
    "c": 0.13217,
    "h": 257.3
  },
  "luminance": 0.10592
}

Semantic roles & 50–950 ramp

primary

#255BA5

secondary

#C39A63

accent

#A141E6

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255BA5

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

Preview Lab → · Contrast checker → · Palette generator →