#1C2E71#1C2E71

#1C2E71 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.1% C 0.118 H 267.9°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C2E71
RGB	rgb(28, 46, 113)
HSL	hsl(227, 60%, 28%)
HSV	hsv(227, 75%, 44%)
CMYK	cmyk(75.2%, 59.3%, 0%, 55.7%)
CIE-LAB	lab(21.55, 18.15, -40.88)
CIE-LCH	lch(21.55, 44.73, 293.94°)
OKLab	oklab(33.05% -0.0043 -0.1178)
OKLCH	oklch(33.05% 0.118 267.9)
XYZ	xyz(4.4355, 3.3927, 16.0407)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2E71 #715F1C

analogous

#1C5971 #1C2E71 #341C71

triadic

#1C2E71 #711C2E #2E711C

tetradic

#1C2E71 #711C59 #715F1C #1C7134

square

#1C2E71 #711C59 #715F1C #1C7134

split-complementary

#1C2E71 #71341C #59711C

monochromatic

#060A19 #101A40 #1C2E71 #2842A2 #3959CE

Accessibility & contrast

On white

12.51

#1C2E71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1C2E71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2E71

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2E71	#FFFFFF	#000000	##FFFFFF
##1C2E71	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003873

Deuteranopia (green-blind)

#003070

Tritanopia (blue-blind)

#003E4A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c2e71;
/* rgb */ color: rgb(28, 46, 113);
/* oklch */ color: oklch(33.1% 0.118 267.9);

Tailwind

colors: {
  custom: {
    50: '#65669a',
    500: '#1c2e71',
    950: '#000000',
  },
}

SCSS

$custom: #1c2e71;
$custom-light: #65669a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2e71",
  "rgb": {
    "r": 28,
    "g": 46,
    "b": 113
  },
  "hsl": {
    "h": 227.294,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.33054,
    "c": 0.11791,
    "h": 267.9
  },
  "luminance": 0.03393
}

Semantic roles & 50–950 ramp

primary

#1C2E71

secondary

#A69143

accent

#C244E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1C2E71

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

Preview Lab → · Contrast checker → · Palette generator →