#1F136C#1F136C

#1F136C is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.9% C 0.143 H 277.8°. Best body text is #FFFFFF at 15.35:1 contrast (WCAG AA passes).

Color values

HEX	#1F136C
RGB	rgb(31, 19, 108)
HSL	hsl(248, 70%, 25%)
HSV	hsv(248, 82%, 42%)
CMYK	cmyk(71.3%, 82.4%, 0%, 57.6%)
CIE-LAB	lab(14.62, 34.42, -49.00)
CIE-LCH	lch(14.62, 59.88, 305.09°)
OKLab	oklab(27.92% 0.0195 -0.1415)
OKLCH	oklch(27.92% 0.143 277.8)
XYZ	xyz(3.5038, 1.8395, 14.3549)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F136C #606C13

analogous

#13336C #1F136C #4C136C

triadic

#1F136C #6C1F13 #136C1F

tetradic

#1F136C #6C1333 #606C13 #136C4C

square

#1F136C #6C1333 #606C13 #136C4C

split-complementary

#1F136C #6C4C13 #336C13

monochromatic

#07051A #100A38 #1F136C #2E1CA0 #3D25D4

Accessibility & contrast

On white

15.35

#1F136C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1F136C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F136C

15.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F136C	#FFFFFF	#000000	##FFFFFF
##1F136C	1.00	15.35	1.37	15.35
#FFFFFF	15.35	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286E

Deuteranopia (green-blind)

#00216A

Tritanopia (blue-blind)

#002E3F

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f136c;
/* rgb */ color: rgb(31, 19, 108);
/* oklch */ color: oklch(27.9% 0.143 277.8);

Tailwind

colors: {
  custom: {
    50: '#685397',
    500: '#1f136c',
    950: '#000000',
  },
}

SCSS

$custom: #1f136c;
$custom-light: #685397;
$custom-dark: #000000;

JSON

{
  "hex": "#1f136c",
  "rgb": {
    "r": 31,
    "g": 19,
    "b": 108
  },
  "hsl": {
    "h": 248.09,
    "s": 70.079,
    "l": 24.902
  },
  "oklch": {
    "l": 0.27922,
    "c": 0.14289,
    "h": 277.8
  },
  "luminance": 0.0184
}

Semantic roles & 50–950 ramp

primary

#1F136C

secondary

#95A338

accent

#ED3BD5

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1F136C

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

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