#1D2B9E#1D2B9E

#1D2B9E is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.0% C 0.183 H 268.8°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B9E
RGB	rgb(29, 43, 158)
HSL	hsl(233, 69%, 37%)
HSV	hsv(233, 82%, 62%)
CMYK	cmyk(81.6%, 72.8%, 0%, 38%)
CIE-LAB	lab(25.13, 37.57, -63.17)
CIE-LCH	lch(25.13, 73.49, 300.74°)
OKLab	oklab(37% -0.0037 -0.183)
OKLCH	oklch(37% 0.183 268.8)
XYZ	xyz(7.5400, 4.4567, 32.8040)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B9E #9E901D

analogous

#1D6C9E #1D2B9E #4F1D9E

triadic

#1D2B9E #9E1D2B #2B9E1D

tetradic

#1D2B9E #9E1D6C #9E901D #1D9E4F

square

#1D2B9E #9E1D6C #9E901D #1D9E4F

split-complementary

#1D2B9E #9E4F1D #6C9E1D

monochromatic

#0A0F37 #141D6A #1D2B9E #2639D2 #5665E0

Accessibility & contrast

On white

11.10

#1D2B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1D2B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B9E

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B9E	#FFFFFF	#000000	##FFFFFF
##1D2B9E	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A1

Deuteranopia (green-blind)

#00359C

Tritanopia (blue-blind)

#004C61

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d2b9e;
/* rgb */ color: rgb(29, 43, 158);
/* oklch */ color: oklch(37.0% 0.183 268.8);

Tailwind

colors: {
  custom: {
    50: '#7265bc',
    500: '#1d2b9e',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b9e;
$custom-light: #7265bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b9e",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 158
  },
  "hsl": {
    "h": 233.488,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.36998,
    "c": 0.18306,
    "h": 268.8
  },
  "luminance": 0.04458
}

Semantic roles & 50–950 ramp

primary

#1D2B9E

secondary

#C3B754

accent

#D93CEC

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090512

muted

#7B7A81

Preview Lab

Preview with #1D2B9E

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

Preview Lab → · Contrast checker → · Palette generator →