#1F3E76#1F3E76

#1F3E76 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.103 H 261.1°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#1F3E76
RGB	rgb(31, 62, 118)
HSL	hsl(219, 58%, 29%)
HSV	hsv(219, 74%, 46%)
CMYK	cmyk(73.7%, 47.5%, 0%, 53.7%)
CIE-LAB	lab(26.86, 9.31, -35.50)
CIE-LCH	lch(26.86, 36.70, 284.70°)
OKLab	oklab(37.25% -0.0158 -0.1016)
OKLCH	oklch(37.25% 0.103 261.1)
XYZ	xyz(5.5565, 5.0440, 17.8168)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3E76 #76571F

analogous

#1F6A76 #1F3E76 #2C1F76

triadic

#1F3E76 #761F3E #3E761F

tetradic

#1F3E76 #761F6A #76571F #1F762C

square

#1F3E76 #761F6A #76571F #1F762C

split-complementary

#1F3E76 #762C1F #6A761F

monochromatic

#060D18 #122546 #1F3E76 #2C57A6 #4274CD

Accessibility & contrast

On white

10.45

#1F3E76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1F3E76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3E76

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3E76	#FFFFFF	#000000	##FFFFFF
##1F3E76	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224478

Deuteranopia (green-blind)

#103C75

Tritanopia (blue-blind)

#004B54

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1f3e76;
/* rgb */ color: rgb(31, 62, 118);
/* oklch */ color: oklch(37.2% 0.103 261.1);

Tailwind

colors: {
  custom: {
    50: '#67729e',
    500: '#1f3e76',
    950: '#000000',
  },
}

SCSS

$custom: #1f3e76;
$custom-light: #67729e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3e76",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 118
  },
  "hsl": {
    "h": 218.621,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37248,
    "c": 0.10287,
    "h": 261.1
  },
  "luminance": 0.05045
}

Semantic roles & 50–950 ramp

primary

#1F3E76

secondary

#AA8747

accent

#AA46E2

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #1F3E76

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

Preview Lab → · Contrast checker → · Palette generator →