#1F2E8B#1F2E8B

#1F2E8B is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.6% C 0.154 H 269.4°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#1F2E8B
RGB	rgb(31, 46, 139)
HSL	hsl(232, 64%, 33%)
HSV	hsv(232, 78%, 55%)
CMYK	cmyk(77.7%, 66.9%, 0%, 45.5%)
CIE-LAB	lab(24.03, 28.75, -53.27)
CIE-LCH	lch(24.03, 60.53, 298.35°)
OKLab	oklab(35.65% -0.0015 -0.1541)
OKLCH	oklch(35.65% 0.154 269.4)
XYZ	xyz(6.2007, 4.1087, 24.8874)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2E8B #8B7C1F

analogous

#1F648B #1F2E8B #461F8B

triadic

#1F2E8B #8B1F2E #2E8B1F

tetradic

#1F2E8B #8B1F64 #8B7C1F #1F8B46

square

#1F2E8B #8B1F64 #8B7C1F #1F8B46

split-complementary

#1F2E8B #8B461F #648B1F

monochromatic

#090D27 #141D59 #1F2E8B #2A3FBD #4D60D7

Accessibility & contrast

On white

11.53

#1F2E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1F2E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2E8B

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2E8B	#FFFFFF	#000000	##FFFFFF
##1F2E8B	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003489

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f2e8b;
/* rgb */ color: rgb(31, 46, 139);
/* oklch */ color: oklch(35.6% 0.154 269.4);

Tailwind

colors: {
  custom: {
    50: '#6d66ae',
    500: '#1f2e8b',
    950: '#000000',
  },
}

SCSS

$custom: #1f2e8b;
$custom-light: #6d66ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2e8b",
  "rgb": {
    "r": 31,
    "g": 46,
    "b": 139
  },
  "hsl": {
    "h": 231.667,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3565,
    "c": 0.15411,
    "h": 269.4
  },
  "luminance": 0.04109
}

Semantic roles & 50–950 ramp

primary

#1F2E8B

secondary

#BAAB4C

accent

#D041E7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1F2E8B

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

Preview Lab → · Contrast checker → · Palette generator →