#1C3697#1C3697

#1C3697 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.2% C 0.161 H 266.6°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#1C3697
RGB	rgb(28, 54, 151)
HSL	hsl(227, 69%, 35%)
HSV	hsv(227, 81%, 59%)
CMYK	cmyk(81.5%, 64.2%, 0%, 40.8%)
CIE-LAB	lab(27.07, 27.68, -55.70)
CIE-LCH	lch(27.07, 62.20, 296.43°)
OKLab	oklab(38.19% -0.0095 -0.1612)
OKLCH	oklch(38.19% 0.161 266.6)
XYZ	xyz(7.3820, 5.1187, 29.8711)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3697 #977D1C

analogous

#1C7397 #1C3697 #3F1C97

triadic

#1C3697 #971C36 #36971C

tetradic

#1C3697 #971C73 #977D1C #1C973F

square

#1C3697 #971C73 #977D1C #1C973F

split-complementary

#1C3697 #973F1C #73971C

monochromatic

#091130 #122463 #1C3697 #2648CB #4F6DDE

Accessibility & contrast

On white

10.38

#1C3697 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1C3697 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3697

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3697	#FFFFFF	#000000	##FFFFFF
##1C3697	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469A

Deuteranopia (green-blind)

#003A95

Tritanopia (blue-blind)

#004F61

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1c3697;
/* rgb */ color: rgb(28, 54, 151);
/* oklch */ color: oklch(38.2% 0.161 266.6);

Tailwind

colors: {
  custom: {
    50: '#6f6cb6',
    500: '#1c3697',
    950: '#000000',
  },
}

SCSS

$custom: #1c3697;
$custom-light: #6f6cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3697",
  "rgb": {
    "r": 28,
    "g": 54,
    "b": 151
  },
  "hsl": {
    "h": 227.317,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38194,
    "c": 0.16146,
    "h": 266.6
  },
  "luminance": 0.0512
}

Semantic roles & 50–950 ramp

primary

#1C3697

secondary

#C1A94E

accent

#C63CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1C3697

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

Preview Lab → · Contrast checker → · Palette generator →