#1C4BA0#1C4BA0

#1C4BA0 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.3% C 0.147 H 261.1°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#1C4BA0
RGB	rgb(28, 75, 160)
HSL	hsl(219, 70%, 37%)
HSV	hsv(219, 83%, 63%)
CMYK	cmyk(82.5%, 53.1%, 0%, 37.3%)
CIE-LAB	lab(33.60, 16.93, -50.53)
CIE-LCH	lch(33.60, 53.29, 288.53°)
OKLab	oklab(43.33% -0.0228 -0.1457)
OKLCH	oklch(43.33% 0.147 261.1)
XYZ	xyz(9.3378, 7.8160, 34.2674)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4BA0 #A0711C

analogous

#1C8DA0 #1C4BA0 #2F1CA0

triadic

#1C4BA0 #A01C4B #4BA01C

tetradic

#1C4BA0 #A01C8D #A0711C #1CA02F

square

#1C4BA0 #A01C8D #A0711C #1CA02F

split-complementary

#1C4BA0 #A02F1C #8DA01C

monochromatic

#0A1A38 #13336C #1C4BA0 #2563D4 #5587E1

Accessibility & contrast

On white

8.19

#1C4BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1C4BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4BA0

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4BA0	#FFFFFF	#000000	##FFFFFF
##1C4BA0	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C55A3

Deuteranopia (green-blind)

#00499E

Tritanopia (blue-blind)

#00606E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1c4ba0;
/* rgb */ color: rgb(28, 75, 160);
/* oklch */ color: oklch(43.3% 0.147 261.1);

Tailwind

colors: {
  custom: {
    50: '#6f7cbd',
    500: '#1c4ba0',
    950: '#000000',
  },
}

SCSS

$custom: #1c4ba0;
$custom-light: #6f7cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4ba0",
  "rgb": {
    "r": 28,
    "g": 75,
    "b": 160
  },
  "hsl": {
    "h": 218.636,
    "s": 70.213,
    "l": 36.863
  },
  "oklch": {
    "l": 0.43327,
    "c": 0.14743,
    "h": 261.1
  },
  "luminance": 0.07817
}

Semantic roles & 50–950 ramp

primary

#1C4BA0

secondary

#C49C53

accent

#AE3BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C4BA0

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

Preview Lab → · Contrast checker → · Palette generator →