#1F247C#1F247C

#1F247C is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.146 H 272.4°. Best body text is #FFFFFF at 13.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F247C
RGB	rgb(31, 36, 124)
HSL	hsl(237, 60%, 30%)
HSV	hsv(237, 75%, 49%)
CMYK	cmyk(75%, 71%, 0%, 51.4%)
CIE-LAB	lab(20.08, 29.74, -50.32)
CIE-LCH	lch(20.08, 58.45, 300.58°)
OKLab	oklab(32.32% 0.0061 -0.1455)
OKLCH	oklch(32.32% 0.146 272.4)
XYZ	xyz(4.8328, 3.0078, 19.3907)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F247C #7C771F

analogous

#1F527C #1F247C #481F7C

triadic

#1F247C #7C1F24 #247C1F

tetradic

#1F247C #7C1F52 #7C771F #1F7C48

square

#1F247C #7C1F52 #7C771F #1F7C48

split-complementary

#1F247C #7C481F #527C1F

monochromatic

#07081A #13164B #1F247C #2B32AD #454CD0

Accessibility & contrast

On white

13.11

#1F247C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1F247C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F247C

13.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F247C	#FFFFFF	#000000	##FFFFFF
##1F247C	1.00	13.11	1.60	13.11
#FFFFFF	13.11	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357F

Deuteranopia (green-blind)

#002C7A

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f247c;
/* rgb */ color: rgb(31, 36, 124);
/* oklch */ color: oklch(32.3% 0.146 272.4);

Tailwind

colors: {
  custom: {
    50: '#6a5fa3',
    500: '#1f247c',
    950: '#000000',
  },
}

SCSS

$custom: #1f247c;
$custom-light: #6a5fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f247c",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 124
  },
  "hsl": {
    "h": 236.774,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32324,
    "c": 0.14566,
    "h": 272.4
  },
  "luminance": 0.03008
}

Semantic roles & 50–950 ramp

primary

#1F247C

secondary

#AFAA48

accent

#DB45E3

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1F247C

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

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