#1C4598#1C4598

#1C4598 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.4% C 0.144 H 262.3°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#1C4598
RGB	rgb(28, 69, 152)
HSL	hsl(220, 69%, 35%)
HSV	hsv(220, 82%, 60%)
CMYK	cmyk(81.6%, 54.6%, 0%, 40.4%)
CIE-LAB	lab(31.28, 17.81, -49.45)
CIE-LCH	lch(31.28, 52.56, 289.81°)
OKLab	oklab(41.37% -0.0193 -0.1426)
OKLCH	oklch(41.37% 0.144 262.3)
XYZ	xyz(8.2725, 6.7691, 30.5703)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4598 #986F1C

analogous

#1C8398 #1C4598 #311C98

triadic

#1C4598 #981C45 #45981C

tetradic

#1C4598 #981C83 #986F1C #1C9831

square

#1C4598 #981C83 #986F1C #1C9831

split-complementary

#1C4598 #98311C #83981C

monochromatic

#091631 #122E64 #1C4598 #265CCC #507FDF

Accessibility & contrast

On white

8.92

#1C4598 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1C4598 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4598

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4598	#FFFFFF	#000000	##FFFFFF
##1C4598	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509B

Deuteranopia (green-blind)

#004496

Tritanopia (blue-blind)

#005967

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4598;
/* rgb */ color: rgb(28, 69, 152);
/* oklch */ color: oklch(41.4% 0.144 262.3);

Tailwind

colors: {
  custom: {
    50: '#6e78b7',
    500: '#1c4598',
    950: '#000000',
  },
}

SCSS

$custom: #1c4598;
$custom-light: #6e78b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4598",
  "rgb": {
    "r": 28,
    "g": 69,
    "b": 152
  },
  "hsl": {
    "h": 220.161,
    "s": 68.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.41372,
    "c": 0.14391,
    "h": 262.3
  },
  "luminance": 0.0677
}

Semantic roles & 50–950 ramp

primary

#1C4598

secondary

#C19B4E

accent

#B23CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4598

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

Preview Lab → · Contrast checker → · Palette generator →