#10274E#10274E

#10274E is a dark, moderate blue. Relative luminance 0.021; OKLCH L 27.9% C 0.078 H 260.3°. Best body text is #FFFFFF at 14.77:1 contrast (WCAG AA passes).

Color values

HEX	#10274E
RGB	rgb(16, 39, 78)
HSL	hsl(218, 66%, 18%)
HSV	hsv(218, 79%, 31%)
CMYK	cmyk(79.5%, 50%, 0%, 69.4%)
CIE-LAB	lab(16.06, 6.73, -26.68)
CIE-LCH	lch(16.06, 27.51, 284.15°)
OKLab	oklab(27.85% -0.0131 -0.0764)
OKLCH	oklch(27.85% 0.078 260.3)
XYZ	xyz(2.3139, 2.1110, 7.4918)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10274E #4E3710

analogous

#10464E #10274E #18104E

triadic

#10274E #4E1027 #274E10

tetradic

#10274E #4E1046 #4E3710 #104E18

square

#10274E #4E1046 #4E3710 #104E18

split-complementary

#10274E #4E1810 #464E10

monochromatic

#050D19 #060E1B #10274E #1A4081 #255AB4

Accessibility & contrast

On white

14.77

#10274E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#10274E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10274E

14.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10274E	#FFFFFF	#000000	##FFFFFF
##10274E	1.00	14.77	1.42	14.77
#FFFFFF	14.77	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#132B4F

Deuteranopia (green-blind)

#07254D

Tritanopia (blue-blind)

#003036

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #10274e;
/* rgb */ color: rgb(16, 39, 78);
/* oklch */ color: oklch(27.9% 0.078 260.3);

Tailwind

colors: {
  custom: {
    50: '#586080',
    500: '#10274e',
    950: '#000000',
  },
}

SCSS

$custom: #10274e;
$custom-light: #586080;
$custom-dark: #000000;

JSON

{
  "hex": "#10274e",
  "rgb": {
    "r": 16,
    "g": 39,
    "b": 78
  },
  "hsl": {
    "h": 217.742,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.2785,
    "c": 0.07754,
    "h": 260.3
  },
  "luminance": 0.02111
}

Semantic roles & 50–950 ramp

primary

#10274E

secondary

#886832

accent

#AA3FE9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04040A

muted

#79797C

Preview Lab

Preview with #10274E

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

Preview Lab → · Contrast checker → · Palette generator →