#1F4585#1F4585

#1F4585 is a dark, moderate blue. Relative luminance 0.062; OKLCH L 40.0% C 0.116 H 260.2°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#1F4585
RGB	rgb(31, 69, 133)
HSL	hsl(218, 62%, 32%)
HSV	hsv(218, 77%, 52%)
CMYK	cmyk(76.7%, 48.1%, 0%, 47.8%)
CIE-LAB	lab(30.01, 10.51, -39.83)
CIE-LCH	lch(30.01, 41.19, 284.79°)
OKLab	oklab(40% -0.0198 -0.1142)
OKLCH	oklch(40% 0.116 260.2)
XYZ	xyz(6.9253, 6.2402, 23.0253)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4585 #855F1F

analogous

#1F7885 #1F4585 #2C1F85

triadic

#1F4585 #851F45 #45851F

tetradic

#1F4585 #851F78 #855F1F #1F852C

square

#1F4585 #851F78 #855F1F #1F852C

split-complementary

#1F4585 #852C1F #78851F

monochromatic

#081222 #132B53 #1F4585 #2B5FB7 #4A7DD5

Accessibility & contrast

On white

9.34

#1F4585 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1F4585 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4585

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4585	#FFFFFF	#000000	##FFFFFF
##1F4585	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234C87

Deuteranopia (green-blind)

#094284

Tritanopia (blue-blind)

#00545E

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1f4585;
/* rgb */ color: rgb(31, 69, 133);
/* oklch */ color: oklch(40.0% 0.116 260.2);

Tailwind

colors: {
  custom: {
    50: '#6a78a9',
    500: '#1f4585',
    950: '#000000',
  },
}

SCSS

$custom: #1f4585;
$custom-light: #6a78a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4585",
  "rgb": {
    "r": 31,
    "g": 69,
    "b": 133
  },
  "hsl": {
    "h": 217.647,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39999,
    "c": 0.11594,
    "h": 260.2
  },
  "luminance": 0.06241
}

Semantic roles & 50–950 ramp

primary

#1F4585

secondary

#B78E49

accent

#A943E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1F4585

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

Preview Lab → · Contrast checker → · Palette generator →