#1F4283#1F4283

#1F4283 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.2% C 0.117 H 261.4°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#1F4283
RGB	rgb(31, 66, 131)
HSL	hsl(219, 62%, 32%)
HSV	hsv(219, 76%, 51%)
CMYK	cmyk(76.3%, 49.6%, 0%, 48.6%)
CIE-LAB	lab(28.97, 11.77, -40.26)
CIE-LCH	lch(28.97, 41.95, 286.30°)
OKLab	oklab(39.15% -0.0174 -0.1156)
OKLCH	oklch(39.15% 0.117 261.4)
XYZ	xyz(6.6086, 5.8257, 22.2445)
Luminance	0.0583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4283 #83601F

analogous

#1F7483 #1F4283 #2E1F83

triadic

#1F4283 #831F42 #42831F

tetradic

#1F4283 #831F74 #83601F #1F832E

square

#1F4283 #831F74 #83601F #1F832E

split-complementary

#1F4283 #832E1F #74831F

monochromatic

#081020 #132952 #1F4283 #2B5BB4 #4979D4

Accessibility & contrast

On white

9.70

#1F4283 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1F4283 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4283

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4283	#FFFFFF	#000000	##FFFFFF
##1F4283	1.00	9.70	2.17	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4985

Deuteranopia (green-blind)

#014082

Tritanopia (blue-blind)

#00515C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1f4283;
/* rgb */ color: rgb(31, 66, 131);
/* oklch */ color: oklch(39.2% 0.117 261.4);

Tailwind

colors: {
  custom: {
    50: '#6a75a7',
    500: '#1f4283',
    950: '#000000',
  },
}

SCSS

$custom: #1f4283;
$custom-light: #6a75a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4283",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 131
  },
  "hsl": {
    "h": 219,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.39154,
    "c": 0.11688,
    "h": 261.4
  },
  "luminance": 0.05826
}

Semantic roles & 50–950 ramp

primary

#1F4283

secondary

#B68F48

accent

#AC43E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1F4283

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

Preview Lab → · Contrast checker → · Palette generator →