#1C4597#1C4597

#1C4597 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.3% C 0.143 H 262.2°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#1C4597
RGB	rgb(28, 69, 151)
HSL	hsl(220, 69%, 35%)
HSV	hsv(220, 81%, 59%)
CMYK	cmyk(81.5%, 54.3%, 0%, 40.8%)
CIE-LAB	lab(31.20, 17.41, -48.97)
CIE-LCH	lch(31.20, 51.97, 289.57°)
OKLab	oklab(41.29% -0.0194 -0.1412)
OKLCH	oklch(41.29% 0.143 262.2)
XYZ	xyz(8.1909, 6.7365, 30.1407)
Luminance	0.0674 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4597 #976E1C

analogous

#1C8297 #1C4597 #301C97

triadic

#1C4597 #971C45 #45971C

tetradic

#1C4597 #971C82 #976E1C #1C9730

square

#1C4597 #971C82 #976E1C #1C9730

split-complementary

#1C4597 #97301C #82971C

monochromatic

#091630 #122D63 #1C4597 #265DCB #4F7FDE

Accessibility & contrast

On white

8.95

#1C4597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1C4597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4597

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4597	#FFFFFF	#000000	##FFFFFF
##1C4597	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#034F9A

Deuteranopia (green-blind)

#004495

Tritanopia (blue-blind)

#005967

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c4597;
/* rgb */ color: rgb(28, 69, 151);
/* oklch */ color: oklch(41.3% 0.143 262.2);

Tailwind

colors: {
  custom: {
    50: '#6d78b6',
    500: '#1c4597',
    950: '#000000',
  },
}

SCSS

$custom: #1c4597;
$custom-light: #6d78b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4597",
  "rgb": {
    "r": 28,
    "g": 69,
    "b": 151
  },
  "hsl": {
    "h": 220,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.4129,
    "c": 0.14251,
    "h": 262.2
  },
  "luminance": 0.06737
}

Semantic roles & 50–950 ramp

primary

#1C4597

secondary

#C19B4E

accent

#B13CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4597

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

Preview Lab → · Contrast checker → · Palette generator →