#1F417D#1F417D

#1F417D is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.5% C 0.109 H 260.8°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#1F417D
RGB	rgb(31, 65, 125)
HSL	hsl(218, 60%, 31%)
HSV	hsv(218, 75%, 49%)
CMYK	cmyk(75.2%, 48%, 0%, 51%)
CIE-LAB	lab(28.25, 10.05, -37.67)
CIE-LCH	lch(28.25, 38.98, 284.94°)
OKLab	oklab(38.47% -0.0175 -0.108)
OKLCH	oklch(38.47% 0.109 260.8)
XYZ	xyz(6.1557, 5.5519, 20.1453)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F417D #7D5B1F

analogous

#1F707D #1F417D #2C1F7D

triadic

#1F417D #7D1F41 #417D1F

tetradic

#1F417D #7D1F70 #7D5B1F #1F7D2C

square

#1F417D #7D1F70 #7D5B1F #1F7D2C

split-complementary

#1F417D #7D2C1F #707D1F

monochromatic

#070E1B #13274C #1F417D #2B5AAE #4578D1

Accessibility & contrast

On white

9.95

#1F417D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1F417D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F417D

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F417D	#FFFFFF	#000000	##FFFFFF
##1F417D	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22477F

Deuteranopia (green-blind)

#0C3F7C

Tritanopia (blue-blind)

#004F59

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f417d;
/* rgb */ color: rgb(31, 65, 125);
/* oklch */ color: oklch(38.5% 0.109 260.8);

Tailwind

colors: {
  custom: {
    50: '#6875a3',
    500: '#1f417d',
    950: '#000000',
  },
}

SCSS

$custom: #1f417d;
$custom-light: #6875a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f417d",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 125
  },
  "hsl": {
    "h": 218.298,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.38472,
    "c": 0.10936,
    "h": 260.8
  },
  "luminance": 0.05553
}

Semantic roles & 50–950 ramp

primary

#1F417D

secondary

#B08A48

accent

#AA44E3

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1F417D

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

Preview Lab → · Contrast checker → · Palette generator →