#101F4C#101F4C

#101F4C is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.086 H 266.4°. Best body text is #FFFFFF at 15.88:1 contrast (WCAG AA passes).

Color values

HEX	#101F4C
RGB	rgb(16, 31, 76)
HSL	hsl(225, 65%, 18%)
HSV	hsv(225, 79%, 30%)
CMYK	cmyk(78.9%, 59.2%, 0%, 70.2%)
CIE-LAB	lab(13.30, 11.92, -29.76)
CIE-LCH	lch(13.30, 32.06, 291.82°)
OKLab	oklab(25.7% -0.0053 -0.0856)
OKLCH	oklch(25.7% 0.086 266.4)
XYZ	xyz(2.0077, 1.6117, 7.0414)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F4C #4C3D10

analogous

#103D4C #101F4C #1F104C

triadic

#101F4C #4C101F #1F4C10

tetradic

#101F4C #4C103D #4C3D10 #104C1F

square

#101F4C #4C103D #4C3D10 #104C1F

split-complementary

#101F4C #4C1F10 #3D4C10

monochromatic

#050A19 #050A19 #101F4C #1B347F #2548B1

Accessibility & contrast

On white

15.88

#101F4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#101F4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F4C

15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F4C	#FFFFFF	#000000	##FFFFFF
##101F4C	1.00	15.88	1.32	15.88
#FFFFFF	15.88	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01254E

Deuteranopia (green-blind)

#00204B

Tritanopia (blue-blind)

#002A32

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #101f4c;
/* rgb */ color: rgb(16, 31, 76);
/* oklch */ color: oklch(25.7% 0.086 266.4);

Tailwind

colors: {
  custom: {
    50: '#585a7e',
    500: '#101f4c',
    950: '#000000',
  },
}

SCSS

$custom: #101f4c;
$custom-light: #585a7e;
$custom-dark: #000000;

JSON

{
  "hex": "#101f4c",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 76
  },
  "hsl": {
    "h": 225,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.25695,
    "c": 0.08581,
    "h": 266.4
  },
  "luminance": 0.01612
}

Semantic roles & 50–950 ramp

primary

#101F4C

secondary

#867132

accent

#BE40E8

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101F4C

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

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