#1F138E#1F138E

#1F138E is a dark, vivid blue. Relative luminance 0.027; OKLCH L 32.1% C 0.184 H 273.0°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#1F138E
RGB	rgb(31, 19, 142)
HSL	hsl(246, 76%, 32%)
HSV	hsv(246, 87%, 56%)
CMYK	cmyk(78.2%, 86.6%, 0%, 44.3%)
CIE-LAB	lab(18.84, 45.29, -63.71)
CIE-LCH	lch(18.84, 78.17, 305.41°)
OKLab	oklab(32.06% 0.0095 -0.1842)
OKLCH	oklch(32.06% 0.184 273)
XYZ	xyz(5.6788, 2.7094, 25.8096)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F138E #828E13

analogous

#13458E #1F138E #5D138E

triadic

#1F138E #8E1F13 #138E1F

tetradic

#1F138E #8E1345 #828E13 #138E5D

square

#1F138E #8E1345 #828E13 #138E5D

split-complementary

#1F138E #8E5D13 #458E13

monochromatic

#070522 #130C58 #1F138E #2B1AC4 #4837E4

Accessibility & contrast

On white

13.62

#1F138E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1F138E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F138E

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F138E	#FFFFFF	#000000	##FFFFFF
##1F138E	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003391

Deuteranopia (green-blind)

#00288C

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f138e;
/* rgb */ color: rgb(31, 19, 142);
/* oklch */ color: oklch(32.1% 0.184 273.0);

Tailwind

colors: {
  custom: {
    50: '#7056b0',
    500: '#1f138e',
    950: '#000000',
  },
}

SCSS

$custom: #1f138e;
$custom-light: #7056b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f138e",
  "rgb": {
    "r": 31,
    "g": 19,
    "b": 142
  },
  "hsl": {
    "h": 245.854,
    "s": 76.398,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32061,
    "c": 0.18448,
    "h": 273
  },
  "luminance": 0.0271
}

Semantic roles & 50–950 ramp

primary

#1F138E

secondary

#B5C23B

accent

#F335E0

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1F138E

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

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