#1F4BAE#1F4BAE

#1F4BAE is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.6% C 0.166 H 263.2°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#1F4BAE
RGB	rgb(31, 75, 174)
HSL	hsl(222, 70%, 40%)
HSV	hsv(222, 82%, 68%)
CMYK	cmyk(82.2%, 56.9%, 0%, 31.8%)
CIE-LAB	lab(34.76, 22.78, -57.01)
CIE-LCH	lch(34.76, 61.39, 291.78°)
OKLab	oklab(44.57% -0.0196 -0.1647)
OKLCH	oklch(44.57% 0.166 263.2)
XYZ	xyz(10.7184, 8.3782, 41.0884)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4BAE #AE821F

analogous

#1F93AE #1F4BAE #3A1FAE

triadic

#1F4BAE #AE1F4B #4BAE1F

tetradic

#1F4BAE #AE1F93 #AE821F #1FAE3A

square

#1F4BAE #AE1F93 #AE821F #1FAE3A

split-complementary

#1F4BAE #AE3A1F #93AE1F

monochromatic

#0C1E46 #16357A #1F4BAE #3064DA #648BE3

Accessibility & contrast

On white

7.85

#1F4BAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1F4BAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4BAE

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4BAE	#FFFFFF	#000000	##FFFFFF
##1F4BAE	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B1

Deuteranopia (green-blind)

#004BAC

Tritanopia (blue-blind)

#006475

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f4bae;
/* rgb */ color: rgb(31, 75, 174);
/* oklch */ color: oklch(44.6% 0.166 263.2);

Tailwind

colors: {
  custom: {
    50: '#747cc7',
    500: '#1f4bae',
    950: '#000000',
  },
}

SCSS

$custom: #1f4bae;
$custom-light: #747cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4bae",
  "rgb": {
    "r": 31,
    "g": 75,
    "b": 174
  },
  "hsl": {
    "h": 221.538,
    "s": 69.756,
    "l": 40.196
  },
  "oklch": {
    "l": 0.44571,
    "c": 0.16584,
    "h": 263.2
  },
  "luminance": 0.08379
}

Semantic roles & 50–950 ramp

primary

#1F4BAE

secondary

#C8A860

accent

#B63BED

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1F4BAE

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

Preview Lab → · Contrast checker → · Palette generator →