#016CE0
Closest named color: Cerulean Blue (#056EEE). oklch(55% 0.195 257.1), rgb(1, 108, 224).
Aa
White text reads best on this color (4.97:1).
About this color
#016CE0 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.195 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.022 away. White text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #016CE0 |
| RGB | rgb(1, 108, 224) |
| HSL | hsl(211, 99%, 44%) |
| OKLCH | oklch(55% 0.195 257.1) |
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.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #016CE0 | 4.97:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #016CE0 | 4.22:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #016CE0 text on white | 4.97:1 | AA | Lc 73.5 | Content text, not long reading |
| #016CE0 text on black | 4.22:1 | AA large text | Lc -28.1 | Dividers and decoration only |
Tints and shades
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 600.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBFA
oklch(88.5% 0.049 256.9)
-
Step 300
300
#9CC3F9
oklch(80.9% 0.088 256.6)
-
Step 400
400
#65A2F7
oklch(70.8% 0.14 256.9)
-
Step 500
500
#3787F3
oklch(63% 0.18 257.1)
-
Step 600
600 (this color)
#016CE0
oklch(55% 0.195 257.1)
-
Step 700
700
#005CC1
oklch(49.2% 0.175 257.1)
-
Step 800
800
#024B9F
oklch(42.7% 0.151 257.1)
-
Step 900
900
#10407E
oklch(37.8% 0.117 257)
-
Step 950
950
#0B264A
oklch(27.1% 0.074 256.8)
#016CE0 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.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #1079E4 | 0.035 |
| Deuteranopia (no green cones) | #0067DE | 0.013 |
| Tritanopia (no blue cones) | #00899C | 0.146 |
| Achromatopsia (no color) | #707070 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #016CE0
#016CE0
oklch(55% 0.195 257.1)
- #976700
#976700
oklch(55% 0.115 76.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #016CE0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.022
- Royal Blue #4169E1 ΔE 0.033
- Azul #1D5DEC ΔE 0.040
- Bright Blue #0165FC ΔE 0.046
- Neon Blue #4361EE ΔE 0.047
- Clear Blue #247AFD ΔE 0.058
- Warm Blue #4B57DB ΔE 0.061
- Windows Blue #3778BF ΔE 0.069
Use #016CE0 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.