#036BDF
Closest named color: Cerulean Blue (#056EEE). oklch(54.7% 0.195 257.3), rgb(3, 107, 223).
Aa
White text reads best on this color (5.03:1).
About this color
#036BDF 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 0.024 away. White text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #036BDF |
| RGB | rgb(3, 107, 223) |
| HSL | hsl(212, 97%, 44%) |
| OKLCH | oklch(54.7% 0.195 257.3) |
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 #036BDF | 5.03:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #036BDF | 4.17:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #036BDF text on white | 5.03:1 | AA | Lc 73.9 | Content text, not long reading |
| #036BDF text on black | 4.17:1 | AA large text | Lc -27.8 | 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
#9DC3F9
oklch(80.9% 0.087 257.2)
-
Step 400
400
#65A1F7
oklch(70.6% 0.141 257.5)
-
Step 500
500
#3887F3
oklch(63.1% 0.179 257.3)
-
Step 600
600 (this color)
#036BDF
oklch(54.7% 0.195 257.3)
-
Step 700
700
#005BC2
oklch(49% 0.177 257.5)
-
Step 800
800
#044B9F
oklch(42.7% 0.15 257.3)
-
Step 900
900
#10407E
oklch(37.8% 0.117 257)
-
Step 950
950
#0C264A
oklch(27.1% 0.074 257.4)
#036BDF 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) | #0C78E3 | 0.034 |
| Deuteranopia (no green cones) | #0066DD | 0.013 |
| Tritanopia (no blue cones) | #00889B | 0.146 |
| Achromatopsia (no color) | #6F6F6F | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #036BDF
#036BDF
oklch(54.7% 0.195 257.3)
- #956600
#956600
oklch(54.6% 0.114 77.1)
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 #036BDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.024
- Royal Blue #4169E1 ΔE 0.034
- Azul #1D5DEC ΔE 0.039
- Bright Blue #0165FC ΔE 0.047
- Neon Blue #4361EE ΔE 0.047
- Warm Blue #4B57DB ΔE 0.059
- Clear Blue #247AFD ΔE 0.061
- Mid Blue #276AB3 ΔE 0.068
Use #036BDF 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.