Blue #0000FF

About this color

#0000FF is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.313 and its hue 264°. Its hue sits on the cool side of the wheel. It is the named color Blue. White text reads best on it, at 8.59:1.

Colors that go with Blue

Matches found by rotating Blue around the OKLCH hue wheel, each labelled with the closest name in our list.

Color palettes with Blue

Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Blue, closest first.

No curated palette has a color within ΔE 0.06 of Blue yet.

Similar named colors

The eight named colors closest to Blue, with their ΔE distance.

• Primary Blue #0804F9 ΔE 0.010
• Strong Blue #0C06F7 ΔE 0.013
• Rich Blue #021BF9 ΔE 0.014
• Vivid Blue #152EFF ΔE 0.038
• Pure Blue #0203E2 ΔE 0.047
• Vibrant Blue #0339F8 ΔE 0.047
• Ultramarine Blue #1805DB ΔE 0.059
• Light Royal Blue #3A2EFE ΔE 0.065

More about Blue

• Shades of blue
• Colors that go with Blue
• What Blue means

How to make Blue

A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.

• 1 part blue

Recipe result: #1F4FB3, a difference of ΔE 0.146 from Blue. Blue is more vivid than these paints can mix, so start from a ready-made blue paint and adjust it.

What colors make blue? | Color mixing chart

Codes for Blue in every format

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

Shades and tints of Blue

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.

1. Step 50

   50

   #F1F6FF

   oklch(97.2% 0.013 262.4)

2. Step 100

   100

   #E0EAFF

   oklch(93.6% 0.03 265.3)

3. Step 200

   200

   #C7DAFF

   oklch(88.6% 0.055 263.7)

4. Step 300

   300

   #A1C0FF

   oklch(80.8% 0.096 264.1)

5. Step 400

   400

   #6F9DFF

   oklch(70.7% 0.152 263.9)

6. Step 500

   500

   #4A80FF

   oklch(63.1% 0.198 264.2)

7. Step 600

   600

   #235FFF

   oklch(55.6% 0.245 264.1)

8. Step 700

   700

   #0038FF

   oklch(49.1% 0.287 264)

9. Step 800

   800 (this color)

   #0000FF

   oklch(45.2% 0.313 264.1)

10. Step 900

    900

    #0024B4

    oklch(37.7% 0.222 264)

11. Step 950

    950

    #001570

    oklch(27.1% 0.154 263.9)

Export this scale for Tailwind in the Tailwind colors tool

Blue with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.