#1F4079#1F4079

#1F4079 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.105 H 260.5°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#1F4079
RGB	rgb(31, 64, 121)
HSL	hsl(218, 59%, 30%)
HSV	hsv(218, 74%, 47%)
CMYK	cmyk(74.4%, 47.1%, 0%, 52.5%)
CIE-LAB	lab(27.68, 9.13, -36.08)
CIE-LCH	lch(27.68, 37.22, 284.21°)
OKLab	oklab(37.94% -0.0172 -0.1033)
OKLCH	oklch(37.94% 0.105 260.5)
XYZ	xyz(5.8484, 5.3380, 18.8076)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4079 #79581F

analogous

#1F6D79 #1F4079 #2B1F79

triadic

#1F4079 #791F40 #40791F

tetradic

#1F4079 #791F6D #79581F #1F792B

square

#1F4079 #791F6D #79581F #1F792B

split-complementary

#1F4079 #792B1F #6D791F

monochromatic

#060D18 #132648 #1F4079 #2B5AAA #4377CF

Accessibility & contrast

On white

10.16

#1F4079 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1F4079 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4079

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4079	#FFFFFF	#000000	##FFFFFF
##1F4079	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23467B

Deuteranopia (green-blind)

#113D78

Tritanopia (blue-blind)

#004D56

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f4079;
/* rgb */ color: rgb(31, 64, 121);
/* oklch */ color: oklch(37.9% 0.105 260.5);

Tailwind

colors: {
  custom: {
    50: '#6774a0',
    500: '#1f4079',
    950: '#000000',
  },
}

SCSS

$custom: #1f4079;
$custom-light: #6774a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4079",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 121
  },
  "hsl": {
    "h": 218,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37942,
    "c": 0.10474,
    "h": 260.5
  },
  "luminance": 0.05339
}

Semantic roles & 50–950 ramp

primary

#1F4079

secondary

#AC8747

accent

#A945E2

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #1F4079

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

Preview Lab → · Contrast checker → · Palette generator →