#1B2F97#1B2F97

#1B2F97 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.9% C 0.170 H 267.8°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B2F97
RGB	rgb(27, 47, 151)
HSL	hsl(230, 70%, 35%)
HSV	hsv(230, 82%, 59%)
CMYK	cmyk(82.1%, 68.9%, 0%, 40.8%)
CIE-LAB	lab(25.26, 32.27, -58.67)
CIE-LCH	lch(25.26, 66.96, 298.81°)
OKLab	oklab(36.85% -0.0066 -0.1699)
OKLCH	oklch(36.85% 0.17 267.8)
XYZ	xyz(7.0525, 4.4996, 29.7690)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2F97 #97831B

analogous

#1B6D97 #1B2F97 #451B97

triadic

#1B2F97 #971B2F #2F971B

tetradic

#1B2F97 #971B6D #97831B #1B9745

square

#1B2F97 #971B6D #97831B #1B9745

split-complementary

#1B2F97 #97451B #6D971B

monochromatic

#080F2F #121F63 #1B2F97 #243FCB #4D65DF

Accessibility & contrast

On white

11.05

#1B2F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1B2F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2F97

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2F97	#FFFFFF	#000000	##FFFFFF
##1B2F97	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429A

Deuteranopia (green-blind)

#003695

Tritanopia (blue-blind)

#004B5F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b2f97;
/* rgb */ color: rgb(27, 47, 151);
/* oklch */ color: oklch(36.9% 0.170 267.8);

Tailwind

colors: {
  custom: {
    50: '#6f67b7',
    500: '#1b2f97',
    950: '#000000',
  },
}

SCSS

$custom: #1b2f97;
$custom-light: #6f67b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2f97",
  "rgb": {
    "r": 27,
    "g": 47,
    "b": 151
  },
  "hsl": {
    "h": 230.323,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36853,
    "c": 0.17008,
    "h": 267.8
  },
  "luminance": 0.045
}

Semantic roles & 50–950 ramp

primary

#1B2F97

secondary

#C1AF4C

accent

#D03BEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1B2F97

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

Preview Lab → · Contrast checker → · Palette generator →