#1C3497#1C3497

#1C3497 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.8% C 0.164 H 267.1°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#1C3497
RGB	rgb(28, 52, 151)
HSL	hsl(228, 69%, 35%)
HSV	hsv(228, 81%, 59%)
CMYK	cmyk(81.5%, 65.6%, 0%, 40.8%)
CIE-LAB	lab(26.55, 29.03, -56.54)
CIE-LCH	lch(26.55, 63.56, 297.18°)
OKLab	oklab(37.81% -0.0084 -0.1637)
OKLCH	oklch(37.81% 0.164 267.1)
XYZ	xyz(7.2908, 4.9364, 29.8407)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3497 #977F1C

analogous

#1C7197 #1C3497 #421C97

triadic

#1C3497 #971C34 #34971C

tetradic

#1C3497 #971C71 #977F1C #1C9742

square

#1C3497 #971C71 #977F1C #1C9742

split-complementary

#1C3497 #97421C #71971C

monochromatic

#091030 #122263 #1C3497 #2646CB #4F6BDE

Accessibility & contrast

On white

10.57

#1C3497 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1C3497 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3497

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3497	#FFFFFF	#000000	##FFFFFF
##1C3497	1.00	10.57	1.99	10.57
#FFFFFF	10.57	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459A

Deuteranopia (green-blind)

#003995

Tritanopia (blue-blind)

#004E60

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c3497;
/* rgb */ color: rgb(28, 52, 151);
/* oklch */ color: oklch(37.8% 0.164 267.1);

Tailwind

colors: {
  custom: {
    50: '#6f6bb7',
    500: '#1c3497',
    950: '#000000',
  },
}

SCSS

$custom: #1c3497;
$custom-light: #6f6bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3497",
  "rgb": {
    "r": 28,
    "g": 52,
    "b": 151
  },
  "hsl": {
    "h": 228.293,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.37812,
    "c": 0.16389,
    "h": 267.1
  },
  "luminance": 0.04937
}

Semantic roles & 50–950 ramp

primary

#1C3497

secondary

#C1AA4E

accent

#C93CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1C3497

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

Preview Lab → · Contrast checker → · Palette generator →