#1C2972#1C2972

#1C2972 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.1% C 0.126 H 269.9°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#1C2972
RGB	rgb(28, 41, 114)
HSL	hsl(231, 61%, 28%)
HSV	hsv(231, 75%, 45%)
CMYK	cmyk(75.4%, 64%, 0%, 55.3%)
CIE-LAB	lab(20.23, 22.10, -43.68)
CIE-LCH	lch(20.23, 48.95, 296.84°)
OKLab	oklab(32.1% -0.0001 -0.1261)
OKLCH	oklch(32.1% 0.126 269.9)
XYZ	xyz(4.3081, 3.0472, 16.2775)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2972 #72651C

analogous

#1C5472 #1C2972 #3A1C72

triadic

#1C2972 #721C29 #29721C

tetradic

#1C2972 #721C54 #72651C #1C723A

square

#1C2972 #721C54 #72651C #1C723A

split-complementary

#1C2972 #723A1C #54721C

monochromatic

#060919 #101741 #1C2972 #283BA3 #3A50CF

Accessibility & contrast

On white

13.05

#1C2972 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1C2972 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2972

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2972	#FFFFFF	#000000	##FFFFFF
##1C2972	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003574

Deuteranopia (green-blind)

#002D71

Tritanopia (blue-blind)

#003C49

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c2972;
/* rgb */ color: rgb(28, 41, 114);
/* oklch */ color: oklch(32.1% 0.126 269.9);

Tailwind

colors: {
  custom: {
    50: '#66629b',
    500: '#1c2972',
    950: '#000000',
  },
}

SCSS

$custom: #1c2972;
$custom-light: #66629b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2972",
  "rgb": {
    "r": 28,
    "g": 41,
    "b": 114
  },
  "hsl": {
    "h": 230.93,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.32098,
    "c": 0.12611,
    "h": 269.9
  },
  "luminance": 0.03048
}

Semantic roles & 50–950 ramp

primary

#1C2972

secondary

#A69743

accent

#CC44E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1C2972

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

Preview Lab → · Contrast checker → · Palette generator →