#1F367E#1F367E

#1F367E is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.1% C 0.125 H 266.6°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F367E
RGB	rgb(31, 54, 126)
HSL	hsl(225, 61%, 31%)
HSV	hsv(225, 75%, 49%)
CMYK	cmyk(75.4%, 57.1%, 0%, 50.6%)
CIE-LAB	lab(25.06, 18.13, -43.45)
CIE-LCH	lch(25.06, 47.08, 292.65°)
OKLab	oklab(36.07% -0.0074 -0.1252)
OKLCH	oklch(36.07% 0.125 266.6)
XYZ	xyz(5.6488, 4.4354, 20.2930)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F367E #7E671F

analogous

#1F657E #1F367E #371F7E

triadic

#1F367E #7E1F36 #367E1F

tetradic

#1F367E #7E1F65 #7E671F #1F7E37

square

#1F367E #7E1F65 #7E671F #1F7E37

split-complementary

#1F367E #7E371F #657E1F

monochromatic

#070C1C #13214D #1F367E #2B4BAF #4668D1

Accessibility & contrast

On white

11.13

#1F367E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1F367E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F367E

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F367E	#FFFFFF	#000000	##FFFFFF
##1F367E	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004080

Deuteranopia (green-blind)

#00377D

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f367e;
/* rgb */ color: rgb(31, 54, 126);
/* oklch */ color: oklch(36.1% 0.125 266.6);

Tailwind

colors: {
  custom: {
    50: '#696ca4',
    500: '#1f367e',
    950: '#000000',
  },
}

SCSS

$custom: #1f367e;
$custom-light: #696ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f367e",
  "rgb": {
    "r": 31,
    "g": 54,
    "b": 126
  },
  "hsl": {
    "h": 225.474,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.36066,
    "c": 0.12539,
    "h": 266.6
  },
  "luminance": 0.04436
}

Semantic roles & 50–950 ramp

primary

#1F367E

secondary

#B19848

accent

#BD44E4

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1F367E

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

Preview Lab → · Contrast checker → · Palette generator →