#121EB7#121EB7

#121EB7 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.8% C 0.227 H 266.5°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#121EB7
RGB	rgb(18, 30, 183)
HSL	hsl(236, 82%, 39%)
HSV	hsv(236, 90%, 72%)
CMYK	cmyk(90.2%, 83.6%, 0%, 28.2%)
CIE-LAB	lab(25.18, 52.54, -78.15)
CIE-LCH	lch(25.18, 94.17, 303.91°)
OKLab	oklab(37.77% -0.0138 -0.2264)
OKLCH	oklch(37.77% 0.227 266.5)
XYZ	xyz(9.2580, 4.4748, 45.1663)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121EB7 #B7AB12

analogous

#1271B7 #121EB7 #5812B7

triadic

#121EB7 #B7121E #1EB712

tetradic

#121EB7 #B71271 #B7AB12 #12B758

square

#121EB7 #B71271 #B7AB12 #12B758

split-complementary

#121EB7 #B75812 #71B712

monochromatic

#070C48 #0D157F #121EB7 #1D2CE9 #5560EE

Accessibility & contrast

On white

11.08

#121EB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#121EB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121EB7

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121EB7	#FFFFFF	#000000	##FFFFFF
##121EB7	1.00	11.08	1.90	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044BB

Deuteranopia (green-blind)

#0033B5

Tritanopia (blue-blind)

#00516D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #121eb7;
/* rgb */ color: rgb(18, 30, 183);
/* oklch */ color: oklch(37.8% 0.227 266.5);

Tailwind

colors: {
  custom: {
    50: '#785ece',
    500: '#121eb7',
    950: '#000000',
  },
}

SCSS

$custom: #121eb7;
$custom-light: #785ece;
$custom-dark: #000000;

JSON

{
  "hex": "#121eb7",
  "rgb": {
    "r": 18,
    "g": 30,
    "b": 183
  },
  "hsl": {
    "h": 235.636,
    "s": 82.09,
    "l": 39.412
  },
  "oklch": {
    "l": 0.37769,
    "c": 0.2268,
    "h": 266.5
  },
  "luminance": 0.04476
}

Semantic roles & 50–950 ramp

primary

#121EB7

secondary

#D1C854

accent

#EA2FF8

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #121EB7

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

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