#255AA3#255AA3

#255AA3 is a mid, vivid cyan. Relative luminance 0.103; OKLCH L 47.2% C 0.131 H 257.3°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#255AA3
RGB	rgb(37, 90, 163)
HSL	hsl(215, 63%, 39%)
HSV	hsv(215, 77%, 64%)
CMYK	cmyk(77.3%, 44.8%, 0%, 36.1%)
CIE-LAB	lab(38.46, 9.12, -44.47)
CIE-LCH	lch(38.46, 45.40, 281.59°)
OKLab	oklab(47.21% -0.0287 -0.1274)
OKLCH	oklch(47.21% 0.131 257.3)
XYZ	xyz(11.0275, 10.3487, 36.0595)
Luminance	0.1035 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255AA3 #A36E25

analogous

#2599A3 #255AA3 #2F25A3

triadic

#255AA3 #A3255A #5AA325

tetradic

#255AA3 #A32599 #A36E25 #25A32F

square

#255AA3 #A32599 #A36E25 #25A32F

split-complementary

#255AA3 #A32F25 #99A325

monochromatic

#0E233F #1A3E71 #255AA3 #3476D1 #6698DC

Accessibility & contrast

On white

6.84

#255AA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#255AA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255AA3

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255AA3	#FFFFFF	#000000	##FFFFFF
##255AA3	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3561A6

Deuteranopia (green-blind)

#1C55A2

Tritanopia (blue-blind)

#006B76

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #255aa3;
/* rgb */ color: rgb(37, 90, 163);
/* oklch */ color: oklch(47.2% 0.131 257.3);

Tailwind

colors: {
  custom: {
    50: '#7288bf',
    500: '#255aa3',
    950: '#000000',
  },
}

SCSS

$custom: #255aa3;
$custom-light: #7288bf;
$custom-dark: #000000;

JSON

{
  "hex": "#255aa3",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 163
  },
  "hsl": {
    "h": 214.762,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.47208,
    "c": 0.13061,
    "h": 257.3
  },
  "luminance": 0.1035
}

Semantic roles & 50–950 ramp

primary

#255AA3

secondary

#C29A62

accent

#A142E6

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255AA3

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

Preview Lab → · Contrast checker → · Palette generator →