#1D258E#1D258E

#1D258E is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.3% C 0.169 H 270.3°. Best body text is #FFFFFF at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#1D258E
RGB	rgb(29, 37, 142)
HSL	hsl(236, 66%, 34%)
HSV	hsv(236, 80%, 56%)
CMYK	cmyk(79.6%, 73.9%, 0%, 44.3%)
CIE-LAB	lab(22.08, 35.50, -58.35)
CIE-LCH	lch(22.08, 68.30, 301.32°)
OKLab	oklab(34.3% 0.0009 -0.169)
OKLCH	oklch(34.3% 0.169 270.3)
XYZ	xyz(6.0491, 3.5367, 25.9498)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D258E #8E861D

analogous

#1D5D8E #1D258E #4D1D8E

triadic

#1D258E #8E1D25 #258E1D

tetradic

#1D258E #8E1D5D #8E861D #1D8E4D

square

#1D258E #8E1D5D #8E861D #1D8E4D

split-complementary

#1D258E #8E4D1D #5D8E1D

monochromatic

#080B28 #13185B #1D258E #2732C1 #4B55DA

Accessibility & contrast

On white

12.30

#1D258E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1D258E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D258E

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D258E	#FFFFFF	#000000	##FFFFFF
##1D258E	1.00	12.30	1.71	12.30
#FFFFFF	12.30	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A91

Deuteranopia (green-blind)

#002F8C

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d258e;
/* rgb */ color: rgb(29, 37, 142);
/* oklch */ color: oklch(34.3% 0.169 270.3);

Tailwind

colors: {
  custom: {
    50: '#6e60b0',
    500: '#1d258e',
    950: '#000000',
  },
}

SCSS

$custom: #1d258e;
$custom-light: #6e60b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d258e",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 142
  },
  "hsl": {
    "h": 235.752,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.343,
    "c": 0.16898,
    "h": 270.3
  },
  "luminance": 0.03537
}

Semantic roles & 50–950 ramp

primary

#1D258E

secondary

#BDB44A

accent

#DD3FE9

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #1D258E

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

Preview Lab → · Contrast checker → · Palette generator →