#1F4076#1F4076

#1F4076 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.7% C 0.100 H 259.8°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F4076
RGB	rgb(31, 64, 118)
HSL	hsl(217, 58%, 29%)
HSV	hsv(217, 74%, 46%)
CMYK	cmyk(73.7%, 45.8%, 0%, 53.7%)
CIE-LAB	lab(27.48, 7.93, -34.51)
CIE-LCH	lch(27.48, 35.41, 282.94°)
OKLab	oklab(37.72% -0.0178 -0.0987)
OKLCH	oklch(37.72% 0.1 259.8)
XYZ	xyz(5.6673, 5.2655, 17.8537)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4076 #76551F

analogous

#1F6C76 #1F4076 #2A1F76

triadic

#1F4076 #761F40 #40761F

tetradic

#1F4076 #761F6C #76551F #1F762A

square

#1F4076 #761F6C #76551F #1F762A

split-complementary

#1F4076 #762A1F #6C761F

monochromatic

#060D18 #122646 #1F4076 #2C5AA6 #4277CD

Accessibility & contrast

On white

10.23

#1F4076 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1F4076 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4076

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4076	#FFFFFF	#000000	##FFFFFF
##1F4076	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254578

Deuteranopia (green-blind)

#163D75

Tritanopia (blue-blind)

#004D55

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f4076;
/* rgb */ color: rgb(31, 64, 118);
/* oklch */ color: oklch(37.7% 0.100 259.8);

Tailwind

colors: {
  custom: {
    50: '#67749e',
    500: '#1f4076',
    950: '#000000',
  },
}

SCSS

$custom: #1f4076;
$custom-light: #67749e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4076",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 118
  },
  "hsl": {
    "h": 217.241,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37725,
    "c": 0.10029,
    "h": 259.8
  },
  "luminance": 0.05266
}

Semantic roles & 50–950 ramp

primary

#1F4076

secondary

#AA8447

accent

#A746E2

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1F4076

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

Preview Lab → · Contrast checker → · Palette generator →