#1F3E7D#1F3E7D

#1F3E7D is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.8% C 0.113 H 262.6°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#1F3E7D
RGB	rgb(31, 62, 125)
HSL	hsl(220, 60%, 31%)
HSV	hsv(220, 75%, 49%)
CMYK	cmyk(75.2%, 50.4%, 0%, 51%)
CIE-LAB	lab(27.34, 12.13, -39.13)
CIE-LCH	lch(27.34, 40.97, 287.22°)
OKLab	oklab(37.77% -0.0146 -0.1123)
OKLCH	oklch(37.77% 0.113 262.6)
XYZ	xyz(5.9880, 5.2166, 20.0894)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3E7D #7D5E1F

analogous

#1F6D7D #1F3E7D #2F1F7D

triadic

#1F3E7D #7D1F3E #3E7D1F

tetradic

#1F3E7D #7D1F6D #7D5E1F #1F7D2F

square

#1F3E7D #7D1F6D #7D5E1F #1F7D2F

split-complementary

#1F3E7D #7D2F1F #6D7D1F

monochromatic

#070D1B #13264C #1F3E7D #2B56AE #4573D1

Accessibility & contrast

On white

10.28

#1F3E7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1F3E7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3E7D

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3E7D	#FFFFFF	#000000	##FFFFFF
##1F3E7D	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B457F

Deuteranopia (green-blind)

#003D7C

Tritanopia (blue-blind)

#004D57

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f3e7d;
/* rgb */ color: rgb(31, 62, 125);
/* oklch */ color: oklch(37.8% 0.113 262.6);

Tailwind

colors: {
  custom: {
    50: '#6872a3',
    500: '#1f3e7d',
    950: '#000000',
  },
}

SCSS

$custom: #1f3e7d;
$custom-light: #6872a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3e7d",
  "rgb": {
    "r": 31,
    "g": 62,
    "b": 125
  },
  "hsl": {
    "h": 220.213,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37774,
    "c": 0.11327,
    "h": 262.6
  },
  "luminance": 0.05217
}

Semantic roles & 50–950 ramp

primary

#1F3E7D

secondary

#B08E48

accent

#AF44E3

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1F3E7D

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

Preview Lab → · Contrast checker → · Palette generator →