#1F4D98#1F4D98

#1F4D98 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.3% C 0.133 H 259.8°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#1F4D98
RGB	rgb(31, 77, 152)
HSL	hsl(217, 66%, 36%)
HSV	hsv(217, 80%, 60%)
CMYK	cmyk(79.6%, 49.3%, 0%, 40.4%)
CIE-LAB	lab(33.70, 12.69, -45.53)
CIE-LCH	lch(33.70, 47.26, 285.58°)
OKLab	oklab(43.25% -0.0235 -0.1309)
OKLCH	oklch(43.25% 0.133 259.8)
XYZ	xyz(8.8844, 7.8650, 30.7495)
Luminance	0.0787 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4D98 #986A1F

analogous

#1F8998 #1F4D98 #2D1F98

triadic

#1F4D98 #981F4D #4D981F

tetradic

#1F4D98 #981F89 #986A1F #1F982D

square

#1F4D98 #981F89 #986A1F #1F982D

split-complementary

#1F4D98 #982D1F #89981F

monochromatic

#0A1932 #153365 #1F4D98 #2967CB #5588DC

Accessibility & contrast

On white

8.16

#1F4D98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1F4D98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4D98

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4D98	#FFFFFF	#000000	##FFFFFF
##1F4D98	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22559B

Deuteranopia (green-blind)

#004A97

Tritanopia (blue-blind)

#005F6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f4d98;
/* rgb */ color: rgb(31, 77, 152);
/* oklch */ color: oklch(43.3% 0.133 259.8);

Tailwind

colors: {
  custom: {
    50: '#6e7eb7',
    500: '#1f4d98',
    950: '#000000',
  },
}

SCSS

$custom: #1f4d98;
$custom-light: #6e7eb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4d98",
  "rgb": {
    "r": 31,
    "g": 77,
    "b": 152
  },
  "hsl": {
    "h": 217.19,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.43251,
    "c": 0.13296,
    "h": 259.8
  },
  "luminance": 0.07866
}

Semantic roles & 50–950 ramp

primary

#1F4D98

secondary

#C09653

accent

#A83FE9

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F4D98

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

Preview Lab → · Contrast checker → · Palette generator →