#1C2590#1C2590

#1C2590 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.172 H 269.9°. Best body text is #FFFFFF at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#1C2590
RGB	rgb(28, 37, 144)
HSL	hsl(235, 67%, 34%)
HSV	hsv(235, 81%, 56%)
CMYK	cmyk(80.6%, 74.3%, 0%, 43.5%)
CIE-LAB	lab(22.24, 36.14, -59.32)
CIE-LCH	lch(22.24, 69.47, 301.35°)
OKLab	oklab(34.47% -0.0004 -0.1718)
OKLCH	oklch(34.47% 0.172 269.9)
XYZ	xyz(6.1728, 3.5829, 26.7464)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2590 #90871C

analogous

#1C5F90 #1C2590 #4D1C90

triadic

#1C2590 #901C25 #25901C

tetradic

#1C2590 #901C5F #90871C #1C904D

square

#1C2590 #901C5F #90871C #1C904D

split-complementary

#1C2590 #904D1C #5F901C

monochromatic

#080B2A #12185D #1C2590 #2632C3 #4A56DC

Accessibility & contrast

On white

12.23

#1C2590 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1C2590 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2590

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2590	#FFFFFF	#000000	##FFFFFF
##1C2590	1.00	12.23	1.72	12.23
#FFFFFF	12.23	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B93

Deuteranopia (green-blind)

#002F8E

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c2590;
/* rgb */ color: rgb(28, 37, 144);
/* oklch */ color: oklch(34.5% 0.172 269.9);

Tailwind

colors: {
  custom: {
    50: '#6e60b2',
    500: '#1c2590',
    950: '#000000',
  },
}

SCSS

$custom: #1c2590;
$custom-light: #6e60b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2590",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 144
  },
  "hsl": {
    "h": 235.345,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34469,
    "c": 0.17183,
    "h": 269.9
  },
  "luminance": 0.03584
}

Semantic roles & 50–950 ramp

primary

#1C2590

secondary

#BEB54A

accent

#DD3DEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1C2590

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

Preview Lab → · Contrast checker → · Palette generator →