#1F417A#1F417A

#1F417A is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.3% C 0.105 H 260.1°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#1F417A
RGB	rgb(31, 65, 122)
HSL	hsl(218, 59%, 30%)
HSV	hsv(218, 75%, 48%)
CMYK	cmyk(74.6%, 46.7%, 0%, 52.2%)
CIE-LAB	lab(28.05, 8.85, -36.11)
CIE-LCH	lch(28.05, 37.18, 283.76°)
OKLab	oklab(38.25% -0.018 -0.1034)
OKLCH	oklch(38.25% 0.105 260.1)
XYZ	xyz(5.9670, 5.4764, 19.1512)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F417A #7A581F

analogous

#1F6F7A #1F417A #2A1F7A

triadic

#1F417A #7A1F41 #417A1F

tetradic

#1F417A #7A1F6F #7A581F #1F7A2A

square

#1F417A #7A1F6F #7A581F #1F7A2A

split-complementary

#1F417A #7A2A1F #6F7A1F

monochromatic

#060D18 #132749 #1F417A #2B5BAB #4478CF

Accessibility & contrast

On white

10.02

#1F417A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1F417A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F417A

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F417A	#FFFFFF	#000000	##FFFFFF
##1F417A	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24477C

Deuteranopia (green-blind)

#123E79

Tritanopia (blue-blind)

#004E57

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f417a;
/* rgb */ color: rgb(31, 65, 122);
/* oklch */ color: oklch(38.3% 0.105 260.1);

Tailwind

colors: {
  custom: {
    50: '#6775a1',
    500: '#1f417a',
    950: '#000000',
  },
}

SCSS

$custom: #1f417a;
$custom-light: #6775a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f417a",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 122
  },
  "hsl": {
    "h": 217.582,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.38252,
    "c": 0.10494,
    "h": 260.1
  },
  "luminance": 0.05477
}

Semantic roles & 50–950 ramp

primary

#1F417A

secondary

#AD8747

accent

#A845E3

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #1F417A

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

Preview Lab → · Contrast checker → · Palette generator →