#1C258E#1C258E

#1C258E is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.2% C 0.169 H 269.9°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#1C258E
RGB	rgb(28, 37, 142)
HSL	hsl(235, 67%, 33%)
HSV	hsv(235, 80%, 56%)
CMYK	cmyk(80.3%, 73.9%, 0%, 44.3%)
CIE-LAB	lab(22.02, 35.42, -58.44)
CIE-LCH	lch(22.02, 68.33, 301.22°)
OKLab	oklab(34.25% -0.0002 -0.1693)
OKLCH	oklch(34.25% 0.169 269.9)
XYZ	xyz(6.0213, 3.5223, 25.9485)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C258E #8E851C

analogous

#1C5E8E #1C258E #4C1C8E

triadic

#1C258E #8E1C25 #258E1C

tetradic

#1C258E #8E1C5E #8E851C #1C8E4C

square

#1C258E #8E1C5E #8E851C #1C8E4C

split-complementary

#1C258E #8E4C1C #5E8E1C

monochromatic

#080A28 #12185B #1C258E #2632C1 #4955DB

Accessibility & contrast

On white

12.32

#1C258E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1C258E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C258E

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C258E	#FFFFFF	#000000	##FFFFFF
##1C258E	1.00	12.32	1.70	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.32	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: #1c258e;
/* rgb */ color: rgb(28, 37, 142);
/* oklch */ color: oklch(34.2% 0.169 269.9);

Tailwind

colors: {
  custom: {
    50: '#6e60b0',
    500: '#1c258e',
    950: '#000000',
  },
}

SCSS

$custom: #1c258e;
$custom-light: #6e60b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c258e",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 142
  },
  "hsl": {
    "h": 235.263,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.34249,
    "c": 0.16925,
    "h": 269.9
  },
  "luminance": 0.03523
}

Semantic roles & 50–950 ramp

primary

#1C258E

secondary

#BDB449

accent

#DC3EEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #1C258E

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

Preview Lab → · Contrast checker → · Palette generator →