#1C488E#1C488E

#1C488E is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.3% C 0.126 H 259.5°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#1C488E
RGB	rgb(28, 72, 142)
HSL	hsl(217, 67%, 33%)
HSV	hsv(217, 80%, 56%)
CMYK	cmyk(80.3%, 49.3%, 0%, 44.3%)
CIE-LAB	lab(31.43, 11.71, -43.10)
CIE-LCH	lch(31.43, 44.67, 285.20°)
OKLab	oklab(41.26% -0.023 -0.1239)
OKLCH	oklch(41.26% 0.126 259.5)
XYZ	xyz(7.6770, 6.8337, 26.5004)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C488E #8E621C

analogous

#1C818E #1C488E #291C8E

triadic

#1C488E #8E1C48 #488E1C

tetradic

#1C488E #8E1C81 #8E621C #1C8E29

square

#1C488E #8E1C81 #8E621C #1C8E29

split-complementary

#1C488E #8E291C #818E1C

monochromatic

#081428 #122E5B #1C488E #2662C1 #4982DB

Accessibility & contrast

On white

8.87

#1C488E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1C488E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C488E

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C488E	#FFFFFF	#000000	##FFFFFF
##1C488E	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204F91

Deuteranopia (green-blind)

#00458D

Tritanopia (blue-blind)

#005964

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c488e;
/* rgb */ color: rgb(28, 72, 142);
/* oklch */ color: oklch(41.3% 0.126 259.5);

Tailwind

colors: {
  custom: {
    50: '#6b7aaf',
    500: '#1c488e',
    950: '#000000',
  },
}

SCSS

$custom: #1c488e;
$custom-light: #6b7aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#1c488e",
  "rgb": {
    "r": 28,
    "g": 72,
    "b": 142
  },
  "hsl": {
    "h": 216.842,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.41255,
    "c": 0.12598,
    "h": 259.5
  },
  "luminance": 0.06835
}

Semantic roles & 50–950 ramp

primary

#1C488E

secondary

#BD9049

accent

#A83EEA

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1C488E

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

Preview Lab → · Contrast checker → · Palette generator →