#101B70#101B70

#101B70 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.6% C 0.144 H 268.4°. Best body text is #FFFFFF at 14.86:1 contrast (WCAG AA passes).

Color values

HEX	#101B70
RGB	rgb(16, 27, 112)
HSL	hsl(233, 75%, 25%)
HSV	hsv(233, 86%, 44%)
CMYK	cmyk(85.7%, 75.9%, 0%, 56.1%)
CIE-LAB	lab(15.82, 29.67, -49.66)
CIE-LCH	lch(15.82, 57.84, 300.85°)
OKLab	oklab(28.65% -0.0041 -0.1439)
OKLCH	oklch(28.65% 0.144 268.4)
XYZ	xyz(3.5292, 2.0635, 15.5384)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B70 #706510

analogous

#104B70 #101B70 #351070

triadic

#101B70 #70101B #1B7010

tetradic

#101B70 #70104B #706510 #107035

square

#101B70 #70104B #706510 #107035

split-complementary

#101B70 #703510 #4B7010

monochromatic

#04061B #080E3A #101B70 #1828A6 #1F35DB

Accessibility & contrast

On white

14.86

#101B70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#101B70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B70

14.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B70	#FFFFFF	#000000	##FFFFFF
##101B70	1.00	14.86	1.41	14.86
#FFFFFF	14.86	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C73

Deuteranopia (green-blind)

#00236E

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #101b70;
/* rgb */ color: rgb(16, 27, 112);
/* oklch */ color: oklch(28.6% 0.144 268.4);

Tailwind

colors: {
  custom: {
    50: '#63589a',
    500: '#101b70',
    950: '#000000',
  },
}

SCSS

$custom: #101b70;
$custom-light: #63589a;
$custom-dark: #000000;

JSON

{
  "hex": "#101b70",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 112
  },
  "hsl": {
    "h": 233.125,
    "s": 75,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28648,
    "c": 0.14397,
    "h": 268.4
  },
  "luminance": 0.02064
}

Semantic roles & 50–950 ramp

primary

#101B70

secondary

#A89A34

accent

#DC36F2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #101B70

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

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