#1D259E#1D259E

#1D259E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.1% C 0.189 H 269.5°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#1D259E
RGB	rgb(29, 37, 158)
HSL	hsl(236, 69%, 37%)
HSV	hsv(236, 82%, 62%)
CMYK	cmyk(81.6%, 76.6%, 0%, 38%)
CIE-LAB	lab(23.84, 41.16, -65.29)
CIE-LCH	lch(23.84, 77.18, 302.23°)
OKLab	oklab(36.08% -0.0015 -0.1891)
OKLCH	oklch(36.08% 0.189 269.5)
XYZ	xyz(7.3377, 4.0521, 32.7365)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D259E #9E961D

analogous

#1D669E #1D259E #561D9E

triadic

#1D259E #9E1D25 #259E1D

tetradic

#1D259E #9E1D66 #9E961D #1D9E56

square

#1D259E #9E1D66 #9E961D #1D9E56

split-complementary

#1D259E #9E561D #669E1D

monochromatic

#0A0D37 #14196A #1D259E #2631D2 #565EE0

Accessibility & contrast

On white

11.60

#1D259E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1D259E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D259E

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D259E	#FFFFFF	#000000	##FFFFFF
##1D259E	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA1

Deuteranopia (green-blind)

#00329C

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d259e;
/* rgb */ color: rgb(29, 37, 158);
/* oklch */ color: oklch(36.1% 0.189 269.5);

Tailwind

colors: {
  custom: {
    50: '#7261bc',
    500: '#1d259e',
    950: '#000000',
  },
}

SCSS

$custom: #1d259e;
$custom-light: #7261bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d259e",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 158
  },
  "hsl": {
    "h": 236.279,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.36081,
    "c": 0.18915,
    "h": 269.5
  },
  "luminance": 0.04053
}

Semantic roles & 50–950 ramp

primary

#1D259E

secondary

#C3BC54

accent

#E13CEC

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1D259E

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

Preview Lab → · Contrast checker → · Palette generator →