#1C3390#1C3390

#1C3390 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.156 H 267.2°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C3390
RGB	rgb(28, 51, 144)
HSL	hsl(228, 67%, 34%)
HSV	hsv(228, 81%, 56%)
CMYK	cmyk(80.6%, 64.6%, 0%, 43.5%)
CIE-LAB	lab(25.65, 26.99, -53.72)
CIE-LCH	lch(25.65, 60.12, 296.67°)
OKLab	oklab(36.95% -0.0076 -0.1554)
OKLCH	oklch(36.95% 0.156 267.2)
XYZ	xyz(6.6950, 4.6274, 26.9205)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3390 #90791C

analogous

#1C6D90 #1C3390 #3F1C90

triadic

#1C3390 #901C33 #33901C

tetradic

#1C3390 #901C6D #90791C #1C903F

square

#1C3390 #901C6D #90791C #1C903F

split-complementary

#1C3390 #903F1C #6D901C

monochromatic

#080F2A #12215D #1C3390 #2645C3 #4A67DC

Accessibility & contrast

On white

10.91

#1C3390 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1C3390 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3390

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3390	#FFFFFF	#000000	##FFFFFF
##1C3390	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004293

Deuteranopia (green-blind)

#00378E

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c3390;
/* rgb */ color: rgb(28, 51, 144);
/* oklch */ color: oklch(36.9% 0.156 267.2);

Tailwind

colors: {
  custom: {
    50: '#6d6ab1',
    500: '#1c3390',
    950: '#000000',
  },
}

SCSS

$custom: #1c3390;
$custom-light: #6d6ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3390",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 144
  },
  "hsl": {
    "h": 228.103,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.36945,
    "c": 0.15563,
    "h": 267.2
  },
  "luminance": 0.04628
}

Semantic roles & 50–950 ramp

primary

#1C3390

secondary

#BEA74A

accent

#C83DEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C3390

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

Preview Lab → · Contrast checker → · Palette generator →