#1F4898#1F4898

#1F4898 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.1% C 0.139 H 262.0°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F4898
RGB	rgb(31, 72, 152)
HSL	hsl(220, 66%, 36%)
HSV	hsv(220, 80%, 60%)
CMYK	cmyk(79.6%, 52.6%, 0%, 40.4%)
CIE-LAB	lab(32.24, 16.08, -47.88)
CIE-LCH	lch(32.24, 50.51, 288.57°)
OKLab	oklab(42.13% -0.0195 -0.1379)
OKLCH	oklch(42.13% 0.139 262)
XYZ	xyz(8.5479, 7.1920, 30.6374)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4898 #986F1F

analogous

#1F8498 #1F4898 #321F98

triadic

#1F4898 #981F48 #48981F

tetradic

#1F4898 #981F84 #986F1F #1F9832

square

#1F4898 #981F84 #986F1F #1F9832

split-complementary

#1F4898 #98321F #84981F

monochromatic

#0A1832 #153065 #1F4898 #2960CB #5583DC

Accessibility & contrast

On white

8.61

#1F4898 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1F4898 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4898

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4898	#FFFFFF	#000000	##FFFFFF
##1F4898	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12529B

Deuteranopia (green-blind)

#004796

Tritanopia (blue-blind)

#005B69

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f4898;
/* rgb */ color: rgb(31, 72, 152);
/* oklch */ color: oklch(42.1% 0.139 262.0);

Tailwind

colors: {
  custom: {
    50: '#6e7ab7',
    500: '#1f4898',
    950: '#000000',
  },
}

SCSS

$custom: #1f4898;
$custom-light: #6e7ab7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4898",
  "rgb": {
    "r": 31,
    "g": 72,
    "b": 152
  },
  "hsl": {
    "h": 219.669,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.42134,
    "c": 0.13927,
    "h": 262
  },
  "luminance": 0.07193
}

Semantic roles & 50–950 ramp

primary

#1F4898

secondary

#C09B53

accent

#AF3FE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4898

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

Preview Lab → · Contrast checker → · Palette generator →