#1C258F#1C258F

#1C258F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.4% C 0.171 H 269.9°. Best body text is #FFFFFF at 12.28:1 contrast (WCAG AA passes).

Color values

HEX	#1C258F
RGB	rgb(28, 37, 143)
HSL	hsl(235, 67%, 34%)
HSV	hsv(235, 80%, 56%)
CMYK	cmyk(80.4%, 74.1%, 0%, 43.9%)
CIE-LAB	lab(22.13, 35.78, -58.88)
CIE-LCH	lch(22.13, 68.90, 301.29°)
OKLab	oklab(34.36% -0.0003 -0.1705)
OKLCH	oklch(34.36% 0.171 269.9)
XYZ	xyz(6.0967, 3.5525, 26.3457)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C258F #8F861C

analogous

#1C5E8F #1C258F #4C1C8F

triadic

#1C258F #8F1C25 #258F1C

tetradic

#1C258F #8F1C5E #8F861C #1C8F4C

square

#1C258F #8F1C5E #8F861C #1C8F4C

split-complementary

#1C258F #8F4C1C #5E8F1C

monochromatic

#080B29 #12185C #1C258F #2632C2 #4A55DC

Accessibility & contrast

On white

12.28

#1C258F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1C258F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C258F

12.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C258F	#FFFFFF	#000000	##FFFFFF
##1C258F	1.00	12.28	1.71	12.28
#FFFFFF	12.28	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B92

Deuteranopia (green-blind)

#002F8D

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c258f;
/* rgb */ color: rgb(28, 37, 143);
/* oklch */ color: oklch(34.4% 0.171 269.9);

Tailwind

colors: {
  custom: {
    50: '#6e60b1',
    500: '#1c258f',
    950: '#000000',
  },
}

SCSS

$custom: #1c258f;
$custom-light: #6e60b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c258f",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 143
  },
  "hsl": {
    "h": 235.304,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.34359,
    "c": 0.17054,
    "h": 269.9
  },
  "luminance": 0.03553
}

Semantic roles & 50–950 ramp

primary

#1C258F

secondary

#BEB449

accent

#DD3EEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1C258F

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

Preview Lab → · Contrast checker → · Palette generator →