#1C2A8F#1C2A8F

#1C2A8F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.165 H 269.1°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#1C2A8F
RGB	rgb(28, 42, 143)
HSL	hsl(233, 67%, 34%)
HSV	hsv(233, 80%, 56%)
CMYK	cmyk(80.4%, 70.6%, 0%, 43.9%)
CIE-LAB	lab(23.29, 32.61, -56.98)
CIE-LCH	lch(23.29, 65.65, 299.78°)
OKLab	oklab(35.19% -0.0026 -0.165)
OKLCH	oklch(35.19% 0.165 269.1)
XYZ	xyz(6.2631, 3.8853, 26.4011)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2A8F #8F811C

analogous

#1C638F #1C2A8F #471C8F

triadic

#1C2A8F #8F1C2A #2A8F1C

tetradic

#1C2A8F #8F1C63 #8F811C #1C8F47

square

#1C2A8F #8F1C63 #8F811C #1C8F47

split-complementary

#1C2A8F #8F471C #638F1C

monochromatic

#080C29 #121B5C #1C2A8F #2639C2 #4A5CDC

Accessibility & contrast

On white

11.82

#1C2A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1C2A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2A8F

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2A8F	#FFFFFF	#000000	##FFFFFF
##1C2A8F	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D92

Deuteranopia (green-blind)

#00328D

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c2a8f;
/* rgb */ color: rgb(28, 42, 143);
/* oklch */ color: oklch(35.2% 0.165 269.1);

Tailwind

colors: {
  custom: {
    50: '#6e64b1',
    500: '#1c2a8f',
    950: '#000000',
  },
}

SCSS

$custom: #1c2a8f;
$custom-light: #6e64b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2a8f",
  "rgb": {
    "r": 28,
    "g": 42,
    "b": 143
  },
  "hsl": {
    "h": 232.696,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.35191,
    "c": 0.16502,
    "h": 269.1
  },
  "luminance": 0.03886
}

Semantic roles & 50–950 ramp

primary

#1C2A8F

secondary

#BEAF49

accent

#D53EEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1C2A8F

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

Preview Lab → · Contrast checker → · Palette generator →