#1F3376#1F3376

#1F3376 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.7% C 0.118 H 267.4°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#1F3376
RGB	rgb(31, 51, 118)
HSL	hsl(226, 58%, 29%)
HSV	hsv(226, 74%, 46%)
CMYK	cmyk(73.7%, 56.8%, 0%, 53.7%)
CIE-LAB	lab(23.56, 17.05, -40.82)
CIE-LCH	lch(23.56, 44.23, 292.67°)
OKLab	oklab(34.73% -0.0054 -0.1175)
OKLCH	oklch(34.73% 0.118 267.4)
XYZ	xyz(5.0178, 3.9665, 17.6372)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3376 #76621F

analogous

#1F5F76 #1F3376 #371F76

triadic

#1F3376 #761F33 #33761F

tetradic

#1F3376 #761F5F #76621F #1F7637

square

#1F3376 #761F5F #76621F #1F7637

split-complementary

#1F3376 #76371F #5F761F

monochromatic

#060A18 #121E46 #1F3376 #2C48A6 #4262CD

Accessibility & contrast

On white

11.71

#1F3376 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1F3376 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3376

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3376	#FFFFFF	#000000	##FFFFFF
##1F3376	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C78

Deuteranopia (green-blind)

#003475

Tritanopia (blue-blind)

#00434F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f3376;
/* rgb */ color: rgb(31, 51, 118);
/* oklch */ color: oklch(34.7% 0.118 267.4);

Tailwind

colors: {
  custom: {
    50: '#676a9e',
    500: '#1f3376',
    950: '#000000',
  },
}

SCSS

$custom: #1f3376;
$custom-light: #676a9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3376",
  "rgb": {
    "r": 31,
    "g": 51,
    "b": 118
  },
  "hsl": {
    "h": 226.207,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34734,
    "c": 0.11761,
    "h": 267.4
  },
  "luminance": 0.03967
}

Semantic roles & 50–950 ramp

primary

#1F3376

secondary

#AA9347

accent

#BE46E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1F3376

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

Preview Lab → · Contrast checker → · Palette generator →