#1F549D#1F549D

#1F549D is a mid, vivid cyan. Relative luminance 0.091; OKLCH L 45.2% C 0.131 H 257.5°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F549D
RGB	rgb(31, 84, 157)
HSL	hsl(215, 67%, 37%)
HSV	hsv(215, 80%, 62%)
CMYK	cmyk(80.3%, 46.5%, 0%, 38.4%)
CIE-LAB	lab(36.11, 10.00, -44.67)
CIE-LCH	lch(36.11, 45.77, 282.62°)
OKLab	oklab(45.21% -0.0285 -0.1282)
OKLCH	oklch(45.21% 0.131 257.5)
XYZ	xyz(9.8190, 9.0651, 33.1240)
Luminance	0.0907 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F549D #9D681F

analogous

#1F939D #1F549D #291F9D

triadic

#1F549D #9D1F54 #549D1F

tetradic

#1F549D #9D1F93 #9D681F #1F9D29

square

#1F549D #9D1F93 #9D681F #1F9D29

split-complementary

#1F549D #9D291F #939D1F

monochromatic

#0B1D37 #15396A #1F549D #296FD0 #5891DE

Accessibility & contrast

On white

7.46

#1F549D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#1F549D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F549D

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F549D	#FFFFFF	#000000	##FFFFFF
##1F549D	1.00	7.46	2.81	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5BA0

Deuteranopia (green-blind)

#0E509C

Tritanopia (blue-blind)

#006571

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1f549d;
/* rgb */ color: rgb(31, 84, 157);
/* oklch */ color: oklch(45.2% 0.131 257.5);

Tailwind

colors: {
  custom: {
    50: '#6f83ba',
    500: '#1f549d',
    950: '#000000',
  },
}

SCSS

$custom: #1f549d;
$custom-light: #6f83ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f549d",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 157
  },
  "hsl": {
    "h": 214.762,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.45213,
    "c": 0.1313,
    "h": 257.5
  },
  "luminance": 0.09066
}

Semantic roles & 50–950 ramp

primary

#1F549D

secondary

#C29456

accent

#A23EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F549D

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

Preview Lab → · Contrast checker → · Palette generator →