#1B2E70#1B2E70

#1B2E70 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.117 H 267.4°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E70
RGB	rgb(27, 46, 112)
HSL	hsl(227, 61%, 27%)
HSV	hsv(227, 76%, 44%)
CMYK	cmyk(75.9%, 58.9%, 0%, 56.1%)
CIE-LAB	lab(21.42, 17.60, -40.46)
CIE-LCH	lch(21.42, 44.12, 293.51°)
OKLab	oklab(32.91% -0.0053 -0.1166)
OKLCH	oklch(32.91% 0.117 267.4)
XYZ	xyz(4.3526, 3.3564, 15.7446)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E70 #705D1B

analogous

#1B5970 #1B2E70 #321B70

triadic

#1B2E70 #701B2E #2E701B

tetradic

#1B2E70 #701B59 #705D1B #1B7032

square

#1B2E70 #701B59 #705D1B #1B7032

split-complementary

#1B2E70 #70321B #59701B

monochromatic

#060A19 #0F1A3F #1B2E70 #2742A1 #3759CF

Accessibility & contrast

On white

12.56

#1B2E70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1B2E70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E70

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E70	#FFFFFF	#000000	##FFFFFF
##1B2E70	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003772

Deuteranopia (green-blind)

#00306F

Tritanopia (blue-blind)

#003E4A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b2e70;
/* rgb */ color: rgb(27, 46, 112);
/* oklch */ color: oklch(32.9% 0.117 267.4);

Tailwind

colors: {
  custom: {
    50: '#65669a',
    500: '#1b2e70',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e70;
$custom-light: #65669a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e70",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 112
  },
  "hsl": {
    "h": 226.588,
    "s": 61.151,
    "l": 27.255
  },
  "oklch": {
    "l": 0.32914,
    "c": 0.11673,
    "h": 267.4
  },
  "luminance": 0.03357
}

Semantic roles & 50–950 ramp

primary

#1B2E70

secondary

#A58F42

accent

#C044E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1B2E70

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

Preview Lab → · Contrast checker → · Palette generator →