#1F4078#1F4078

#1F4078 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.9% C 0.103 H 260.3°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#1F4078
RGB	rgb(31, 64, 120)
HSL	hsl(218, 59%, 30%)
HSV	hsv(218, 74%, 47%)
CMYK	cmyk(74.2%, 46.7%, 0%, 52.9%)
CIE-LAB	lab(27.61, 8.73, -35.56)
CIE-LCH	lch(27.61, 36.61, 283.80°)
OKLab	oklab(37.87% -0.0174 -0.1018)
OKLCH	oklch(37.87% 0.103 260.3)
XYZ	xyz(5.7874, 5.3135, 18.4863)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4078 #78571F

analogous

#1F6D78 #1F4078 #2B1F78

triadic

#1F4078 #781F40 #40781F

tetradic

#1F4078 #781F6D #78571F #1F782B

square

#1F4078 #781F6D #78571F #1F782B

split-complementary

#1F4078 #782B1F #6D781F

monochromatic

#060D18 #122647 #1F4078 #2C5AA9 #4377CE

Accessibility & contrast

On white

10.18

#1F4078 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1F4078 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4078

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4078	#FFFFFF	#000000	##FFFFFF
##1F4078	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24467A

Deuteranopia (green-blind)

#133D77

Tritanopia (blue-blind)

#004D56

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f4078;
/* rgb */ color: rgb(31, 64, 120);
/* oklch */ color: oklch(37.9% 0.103 260.3);

Tailwind

colors: {
  custom: {
    50: '#67749f',
    500: '#1f4078',
    950: '#000000',
  },
}

SCSS

$custom: #1f4078;
$custom-light: #67749f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4078",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 120
  },
  "hsl": {
    "h": 217.753,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37869,
    "c": 0.10326,
    "h": 260.3
  },
  "luminance": 0.05314
}

Semantic roles & 50–950 ramp

primary

#1F4078

secondary

#AB8647

accent

#A846E2

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #1F4078

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

Preview Lab → · Contrast checker → · Palette generator →