#1F345E#1F345E

#1F345E is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.1% C 0.079 H 262.8°. Best body text is #FFFFFF at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#1F345E
RGB	rgb(31, 52, 94)
HSL	hsl(220, 50%, 25%)
HSV	hsv(220, 67%, 37%)
CMYK	cmyk(67%, 44.7%, 0%, 63.1%)
CIE-LAB	lab(22.14, 6.75, -27.59)
CIE-LCH	lch(22.14, 28.40, 283.75°)
OKLab	oklab(33.1% -0.0099 -0.0786)
OKLCH	oklch(33.1% 0.079 262.8)
XYZ	xyz(3.8127, 3.5551, 11.0728)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F345E #5E491F

analogous

#1F545E #1F345E #2A1F5E

triadic

#1F345E #5E1F34 #345E1F

tetradic

#1F345E #5E1F54 #5E491F #1F5E2A

square

#1F345E #5E1F54 #5E491F #1F5E2A

split-complementary

#1F345E #5E2A1F #545E1F

monochromatic

#080D17 #101B30 #1F345E #2E4D8C #3D67BA

Accessibility & contrast

On white

12.27

#1F345E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1F345E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F345E

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F345E	#FFFFFF	#000000	##FFFFFF
##1F345E	1.00	12.27	1.71	12.27
#FFFFFF	12.27	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213860

Deuteranopia (green-blind)

#18325D

Tritanopia (blue-blind)

#003D44

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f345e;
/* rgb */ color: rgb(31, 52, 94);
/* oklch */ color: oklch(33.1% 0.079 262.8);

Tailwind

colors: {
  custom: {
    50: '#626b8c',
    500: '#1f345e',
    950: '#000000',
  },
}

SCSS

$custom: #1f345e;
$custom-light: #626b8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f345e",
  "rgb": {
    "r": 31,
    "g": 52,
    "b": 94
  },
  "hsl": {
    "h": 220,
    "s": 50.4,
    "l": 24.51
  },
  "oklch": {
    "l": 0.33101,
    "c": 0.07921,
    "h": 262.8
  },
  "luminance": 0.03555
}

Semantic roles & 50–950 ramp

primary

#1F345E

secondary

#937946

accent

#AB4EDA

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060C

muted

#7A7A7D

Preview Lab

Preview with #1F345E

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

Preview Lab → · Contrast checker → · Palette generator →