#101A40#101A40

#101A40 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.4% C 0.074 H 269.0°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).

Color values

HEX	#101A40
RGB	rgb(16, 26, 64)
HSL	hsl(228, 60%, 16%)
HSV	hsv(228, 75%, 25%)
CMYK	cmyk(75%, 59.4%, 0%, 74.9%)
CIE-LAB	lab(10.70, 10.57, -25.62)
CIE-LCH	lch(10.70, 27.71, 292.43°)
OKLab	oklab(23.41% -0.0013 -0.0735)
OKLCH	oklch(23.41% 0.074 269)
XYZ	xyz(1.5082, 1.2190, 5.0053)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A40 #403610

analogous

#103240 #101A40 #1E1040

triadic

#101A40 #40101A #1A4010

tetradic

#101A40 #401032 #403610 #10401E

square

#101A40 #401032 #403610 #10401E

split-complementary

#101A40 #401E10 #324010

monochromatic

#060A18 #060A18 #101A40 #1C2E71 #2842A2

Accessibility & contrast

On white

16.88

#101A40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#101A40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A40

16.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A40	#FFFFFF	#000000	##FFFFFF
##101A40	1.00	16.88	1.24	16.88
#FFFFFF	16.88	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041F41

Deuteranopia (green-blind)

#001B3F

Tritanopia (blue-blind)

#00232A

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #101a40;
/* rgb */ color: rgb(16, 26, 64);
/* oklch */ color: oklch(23.4% 0.074 269.0);

Tailwind

colors: {
  custom: {
    50: '#555675',
    500: '#101a40',
    950: '#000000',
  },
}

SCSS

$custom: #101a40;
$custom-light: #555675;
$custom-dark: #000000;

JSON

{
  "hex": "#101a40",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 64
  },
  "hsl": {
    "h": 227.5,
    "s": 60,
    "l": 15.686
  },
  "oklch": {
    "l": 0.23407,
    "c": 0.07355,
    "h": 269
  },
  "luminance": 0.01219
}

Semantic roles & 50–950 ramp

primary

#101A40

secondary

#7A6B32

accent

#C245E3

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #101A40

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

Preview Lab → · Contrast checker → · Palette generator →