#006ADF
Closest named color: Cerulean Blue (#056EEE). oklch(54.5% 0.197 257.4), rgb(0, 106, 223).
Aa
White text reads best on this color (5.08:1).
About this color
#006ADF is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.197 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.025 away. White text reads best on it, at 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.12:1 |
| White text | 5.08:1 |
Values
| HEX | #006ADF |
| RGB | rgb(0, 106, 223) |
| HSL | hsl(211, 100%, 44%) |
| OKLCH | oklch(54.5% 0.197 257.4) |
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 #006ADF | 5.08:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #006ADF | 4.12:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #006ADF text on white | 5.08:1 | AA | Lc 74.2 | Content text, not long reading |
| #006ADF text on black | 4.12:1 | AA large text | Lc -27.5 | 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
#9DC3FA
oklch(81% 0.088 257.6)
-
Step 400
400
#65A1F7
oklch(70.6% 0.141 257.5)
-
Step 500
500
#3787F4
oklch(63.1% 0.181 257.3)
-
Step 600
600 (this color)
#006ADF
oklch(54.5% 0.197 257.4)
-
Step 700
700
#005BC2
oklch(49% 0.177 257.5)
-
Step 800
800
#034B9F
oklch(42.7% 0.151 257.2)
-
Step 900
900
#103F7E
oklch(37.6% 0.118 257.5)
-
Step 950
950
#0B264A
oklch(27.1% 0.074 256.8)
#006ADF 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) | #0278E3 | 0.037 |
| Deuteranopia (no green cones) | #0066DD | 0.010 |
| Tritanopia (no blue cones) | #00879A | 0.148 |
| Achromatopsia (no color) | #6E6E6E | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #006ADF
#006ADF
oklch(54.5% 0.197 257.4)
- #946600
#946600
oklch(54.5% 0.114 77.8)
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 #006ADF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.025
- Royal Blue #4169E1 ΔE 0.035
- Azul #1D5DEC ΔE 0.037
- Bright Blue #0165FC ΔE 0.046
- Neon Blue #4361EE ΔE 0.046
- Warm Blue #4B57DB ΔE 0.058
- Clear Blue #247AFD ΔE 0.063
- Mid Blue #276AB3 ΔE 0.069
Use #006ADF 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.