#1D137B#1D137B

#1D137B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.6% C 0.162 H 274.3°. Best body text is #FFFFFF at 14.67:1 contrast (WCAG AA passes).

Color values

HEX	#1D137B
RGB	rgb(29, 19, 123)
HSL	hsl(246, 73%, 28%)
HSV	hsv(246, 85%, 48%)
CMYK	cmyk(76.4%, 84.6%, 0%, 51.8%)
CIE-LAB	lab(16.29, 39.17, -55.94)
CIE-LCH	lch(16.29, 68.29, 305.00°)
OKLab	oklab(29.57% 0.0122 -0.1618)
OKLCH	oklch(29.57% 0.162 274.3)
XYZ	xyz(4.3135, 2.1566, 18.9240)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D137B #717B13

analogous

#133D7B #1D137B #51137B

triadic

#1D137B #7B1D13 #137B1D

tetradic

#1D137B #7B133D #717B13 #137B51

square

#1D137B #7B133D #717B13 #137B51

split-complementary

#1D137B #7B5113 #3D7B13

monochromatic

#06041B #110B46 #1D137B #291BB0 #3C2ADE

Accessibility & contrast

On white

14.67

#1D137B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1D137B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D137B

14.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D137B	#FFFFFF	#000000	##FFFFFF
##1D137B	1.00	14.67	1.43	14.67
#FFFFFF	14.67	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7E

Deuteranopia (green-blind)

#002379

Tritanopia (blue-blind)

#003448

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1d137b;
/* rgb */ color: rgb(29, 19, 123);
/* oklch */ color: oklch(29.6% 0.162 274.3);

Tailwind

colors: {
  custom: {
    50: '#6b54a2',
    500: '#1d137b',
    950: '#000000',
  },
}

SCSS

$custom: #1d137b;
$custom-light: #6b54a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d137b",
  "rgb": {
    "r": 29,
    "g": 19,
    "b": 123
  },
  "hsl": {
    "h": 245.769,
    "s": 73.239,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29573,
    "c": 0.16224,
    "h": 274.3
  },
  "luminance": 0.02157
}

Semantic roles & 50–950 ramp

primary

#1D137B

secondary

#A5B139

accent

#F038DE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1D137B

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

Preview Lab → · Contrast checker → · Palette generator →