#1F367A#1F367A

#1F367A is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.7% C 0.119 H 266.3°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#1F367A
RGB	rgb(31, 54, 122)
HSL	hsl(225, 59%, 30%)
HSV	hsv(225, 75%, 48%)
CMYK	cmyk(74.6%, 55.7%, 0%, 52.2%)
CIE-LAB	lab(24.75, 16.53, -41.43)
CIE-LCH	lch(24.75, 44.61, 291.75°)
OKLab	oklab(35.73% -0.0077 -0.1192)
OKLCH	oklch(35.73% 0.12 266.3)
XYZ	xyz(5.3959, 4.3342, 18.9608)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F367A #7A631F

analogous

#1F647A #1F367A #351F7A

triadic

#1F367A #7A1F36 #367A1F

tetradic

#1F367A #7A1F64 #7A631F #1F7A35

square

#1F367A #7A1F64 #7A631F #1F7A35

split-complementary

#1F367A #7A351F #647A1F

monochromatic

#060B18 #132049 #1F367A #2B4CAB #4467CF

Accessibility & contrast

On white

11.25

#1F367A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1F367A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F367A

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F367A	#FFFFFF	#000000	##FFFFFF
##1F367A	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033F7C

Deuteranopia (green-blind)

#003779

Tritanopia (blue-blind)

#004652

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f367a;
/* rgb */ color: rgb(31, 54, 122);
/* oklch */ color: oklch(35.7% 0.119 266.3);

Tailwind

colors: {
  custom: {
    50: '#686ca1',
    500: '#1f367a',
    950: '#000000',
  },
}

SCSS

$custom: #1f367a;
$custom-light: #686ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f367a",
  "rgb": {
    "r": 31,
    "g": 54,
    "b": 122
  },
  "hsl": {
    "h": 224.835,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.35729,
    "c": 0.1195,
    "h": 266.3
  },
  "luminance": 0.04335
}

Semantic roles & 50–950 ramp

primary

#1F367A

secondary

#AD9447

accent

#BB45E3

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1F367A

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

Preview Lab → · Contrast checker → · Palette generator →