#1F2F74#1F2F74

#1F2F74 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.7% C 0.120 H 269.1°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F74
RGB	rgb(31, 47, 116)
HSL	hsl(229, 58%, 29%)
HSV	hsv(229, 73%, 45%)
CMYK	cmyk(73.3%, 59.5%, 0%, 54.5%)
CIE-LAB	lab(22.25, 19.09, -41.67)
CIE-LCH	lch(22.25, 45.83, 294.61°)
OKLab	oklab(33.7% -0.0019 -0.1201)
OKLCH	oklch(33.7% 0.12 269.1)
XYZ	xyz(4.7329, 3.5848, 16.9621)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F74 #74641F

analogous

#1F5A74 #1F2F74 #3A1F74

triadic

#1F2F74 #741F2F #2F741F

tetradic

#1F2F74 #741F5A #74641F #1F743A

square

#1F2F74 #741F5A #74641F #1F743A

split-complementary

#1F2F74 #743A1F #5A741F

monochromatic

#060A18 #121B44 #1F2F74 #2C43A4 #415BCC

Accessibility & contrast

On white

12.23

#1F2F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1F2F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F74

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F74	#FFFFFF	#000000	##FFFFFF
##1F2F74	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003976

Deuteranopia (green-blind)

#003173

Tritanopia (blue-blind)

#00404C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2f74;
/* rgb */ color: rgb(31, 47, 116);
/* oklch */ color: oklch(33.7% 0.120 269.1);

Tailwind

colors: {
  custom: {
    50: '#67679d',
    500: '#1f2f74',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f74;
$custom-light: #67679d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f74",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 116
  },
  "hsl": {
    "h": 228.706,
    "s": 57.823,
    "l": 28.824
  },
  "oklch": {
    "l": 0.33698,
    "c": 0.12008,
    "h": 269.1
  },
  "luminance": 0.03585
}

Semantic roles & 50–950 ramp

primary

#1F2F74

secondary

#A89647

accent

#C447E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1F2F74

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

Preview Lab → · Contrast checker → · Palette generator →