#1C2575#1C2575

#1C2575 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.6% C 0.136 H 271.1°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#1C2575
RGB	rgb(28, 37, 117)
HSL	hsl(234, 61%, 28%)
HSV	hsv(234, 76%, 46%)
CMYK	cmyk(76.1%, 68.4%, 0%, 54.1%)
CIE-LAB	lab(19.45, 26.06, -46.89)
CIE-LCH	lch(19.45, 53.64, 299.06°)
OKLab	oklab(31.61% 0.0027 -0.1355)
OKLCH	oklch(31.61% 0.136 271.1)
XYZ	xyz(4.3503, 2.8539, 17.1478)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2575 #756C1C

analogous

#1C5175 #1C2575 #3F1C75

triadic

#1C2575 #751C25 #25751C

tetradic

#1C2575 #751C51 #756C1C #1C753F

square

#1C2575 #751C51 #756C1C #1C753F

split-complementary

#1C2575 #753F1C #51751C

monochromatic

#060819 #101544 #1C2575 #2835A6 #3B4AD0

Accessibility & contrast

On white

13.37

#1C2575 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1C2575 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2575

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2575	#FFFFFF	#000000	##FFFFFF
##1C2575	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003378

Deuteranopia (green-blind)

#002B73

Tritanopia (blue-blind)

#003A49

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1c2575;
/* rgb */ color: rgb(28, 37, 117);
/* oklch */ color: oklch(31.6% 0.136 271.1);

Tailwind

colors: {
  custom: {
    50: '#675f9e',
    500: '#1c2575',
    950: '#000000',
  },
}

SCSS

$custom: #1c2575;
$custom-light: #675f9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2575",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 117
  },
  "hsl": {
    "h": 233.933,
    "s": 61.379,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31609,
    "c": 0.13558,
    "h": 271.1
  },
  "luminance": 0.02854
}

Semantic roles & 50–950 ramp

primary

#1C2575

secondary

#A99F44

accent

#D443E4

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1C2575

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

Preview Lab → · Contrast checker → · Palette generator →