#1F2F73#1F2F73

#1F2F73 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.6% C 0.119 H 269.0°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F73
RGB	rgb(31, 47, 115)
HSL	hsl(229, 58%, 29%)
HSV	hsv(229, 73%, 45%)
CMYK	cmyk(73%, 59.1%, 0%, 54.9%)
CIE-LAB	lab(22.17, 18.69, -41.16)
CIE-LCH	lch(22.17, 45.21, 294.42°)
OKLab	oklab(33.61% -0.002 -0.1186)
OKLCH	oklch(33.61% 0.119 269)
XYZ	xyz(4.6750, 3.5617, 16.6574)
Luminance	0.0356 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F73 #73631F

analogous

#1F5973 #1F2F73 #391F73

triadic

#1F2F73 #731F2F #2F731F

tetradic

#1F2F73 #731F59 #73631F #1F7339

square

#1F2F73 #731F59 #73631F #1F7339

split-complementary

#1F2F73 #73391F #59731F

monochromatic

#060A18 #121B43 #1F2F73 #2C43A3 #415BCC

Accessibility & contrast

On white

12.26

#1F2F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1F2F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F73

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F73	#FFFFFF	#000000	##FFFFFF
##1F2F73	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003975

Deuteranopia (green-blind)

#003172

Tritanopia (blue-blind)

#00404C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2f73;
/* rgb */ color: rgb(31, 47, 115);
/* oklch */ color: oklch(33.6% 0.119 269.0);

Tailwind

colors: {
  custom: {
    50: '#67679c',
    500: '#1f2f73',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f73;
$custom-light: #67679c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f73",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 115
  },
  "hsl": {
    "h": 228.571,
    "s": 57.534,
    "l": 28.627
  },
  "oklch": {
    "l": 0.3361,
    "c": 0.11859,
    "h": 269
  },
  "luminance": 0.03562
}

Semantic roles & 50–950 ramp

primary

#1F2F73

secondary

#A79547

accent

#C347E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1F2F73

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

Preview Lab → · Contrast checker → · Palette generator →