#1C48A4#1C48A4

#1C48A4 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.0% C 0.157 H 262.6°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#1C48A4
RGB	rgb(28, 72, 164)
HSL	hsl(221, 71%, 38%)
HSV	hsv(221, 83%, 64%)
CMYK	cmyk(82.9%, 56.1%, 0%, 35.7%)
CIE-LAB	lab(33.05, 20.57, -53.82)
CIE-LCH	lch(33.05, 57.62, 290.92°)
OKLab	oklab(43.01% -0.0203 -0.1554)
OKLCH	oklch(43.01% 0.157 262.6)
XYZ	xyz(9.4947, 7.5608, 36.0737)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C48A4 #A4781C

analogous

#1C8CA4 #1C48A4 #341CA4

triadic

#1C48A4 #A41C48 #48A41C

tetradic

#1C48A4 #A41C8C #A4781C #1CA434

square

#1C48A4 #A41C8C #A4781C #1CA434

split-complementary

#1C48A4 #A4341C #8CA41C

monochromatic

#0A1A3B #133170 #1C48A4 #255FD8 #5885E2

Accessibility & contrast

On white

8.36

#1C48A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1C48A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C48A4

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C48A4	#FFFFFF	#000000	##FFFFFF
##1C48A4	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A7

Deuteranopia (green-blind)

#0048A2

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c48a4;
/* rgb */ color: rgb(28, 72, 164);
/* oklch */ color: oklch(43.0% 0.157 262.6);

Tailwind

colors: {
  custom: {
    50: '#717ac0',
    500: '#1c48a4',
    950: '#000000',
  },
}

SCSS

$custom: #1c48a4;
$custom-light: #717ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c48a4",
  "rgb": {
    "r": 28,
    "g": 72,
    "b": 164
  },
  "hsl": {
    "h": 220.588,
    "s": 70.833,
    "l": 37.647
  },
  "oklch": {
    "l": 0.43009,
    "c": 0.15672,
    "h": 262.6
  },
  "luminance": 0.07562
}

Semantic roles & 50–950 ramp

primary

#1C48A4

secondary

#C6A256

accent

#B43AEE

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C48A4

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

Preview Lab → · Contrast checker → · Palette generator →