#1F417B#1F417B

#1F417B is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.3% C 0.106 H 260.4°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#1F417B
RGB	rgb(31, 65, 123)
HSL	hsl(218, 60%, 30%)
HSV	hsv(218, 75%, 48%)
CMYK	cmyk(74.8%, 47.2%, 0%, 51.8%)
CIE-LAB	lab(28.12, 9.25, -36.63)
CIE-LCH	lch(28.12, 37.78, 284.17°)
OKLab	oklab(38.32% -0.0178 -0.1049)
OKLCH	oklch(38.32% 0.106 260.4)
XYZ	xyz(6.0292, 5.5013, 19.4792)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F417B #7B591F

analogous

#1F6F7B #1F417B #2B1F7B

triadic

#1F417B #7B1F41 #417B1F

tetradic

#1F417B #7B1F6F #7B591F #1F7B2B

square

#1F417B #7B1F6F #7B591F #1F7B2B

split-complementary

#1F417B #7B2B1F #6F7B1F

monochromatic

#060D19 #13274A #1F417B #2B5BAC #4478D0

Accessibility & contrast

On white

10.00

#1F417B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1F417B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F417B

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F417B	#FFFFFF	#000000	##FFFFFF
##1F417B	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23477D

Deuteranopia (green-blind)

#103E7A

Tritanopia (blue-blind)

#004F58

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f417b;
/* rgb */ color: rgb(31, 65, 123);
/* oklch */ color: oklch(38.3% 0.106 260.4);

Tailwind

colors: {
  custom: {
    50: '#6875a1',
    500: '#1f417b',
    950: '#000000',
  },
}

SCSS

$custom: #1f417b;
$custom-light: #6875a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f417b",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 123
  },
  "hsl": {
    "h": 217.826,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.38325,
    "c": 0.10641,
    "h": 260.4
  },
  "luminance": 0.05502
}

Semantic roles & 50–950 ramp

primary

#1F417B

secondary

#AE8848

accent

#A945E3

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1F417B

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

Preview Lab → · Contrast checker → · Palette generator →