#006CE3
Closest named color: Cerulean Blue (#056EEE). oklch(55.2% 0.199 257.4), rgb(0, 108, 227).
Aa
White text reads best on this color (4.93:1).
About this color
#006CE3 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.199 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.018 away. White text reads best on it, at 4.93:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.199) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #006CE3 |
| RGB | rgb(0, 108, 227) |
| HSL | hsl(211, 100%, 45%) |
| OKLCH | oklch(55.2% 0.199 257.4) |
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 #006CE3 | 4.93:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #006CE3 | 4.25:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #006CE3 text on white | 4.93:1 | AA | Lc 73.3 | Content text, not long reading |
| #006CE3 text on black | 4.25:1 | AA large text | Lc -28.4 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFB
oklch(88.5% 0.05 257.7)
-
Step 300
300
#9CC3FB
oklch(80.9% 0.09 257.4)
-
Step 400
400
#64A1F9
oklch(70.6% 0.144 257.6)
-
Step 500
500
#3687F5
oklch(63.1% 0.182 257.3)
-
Step 600
600 (this color)
#006CE3
oklch(55.2% 0.199 257.4)
-
Step 700
700
#005BC2
oklch(49% 0.177 257.5)
-
Step 800
800
#014AA0
oklch(42.6% 0.153 257.5)
-
Step 900
900
#0F3F7F
oklch(37.6% 0.119 257.5)
-
Step 950
950
#0B264A
oklch(27.1% 0.074 256.8)
#006CE3 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) | #027AE7 | 0.036 |
| Deuteranopia (no green cones) | #0068E1 | 0.010 |
| Tritanopia (no blue cones) | #008A9D | 0.150 |
| Achromatopsia (no color) | #707070 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #006CE3
#006CE3
oklch(55.2% 0.199 257.4)
- #976800
#976800
oklch(55.2% 0.115 77.6)
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 #006CE3, closest first.
No curated palette has a color within ΔE 0.04 of #006CE3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.018
- Royal Blue #4169E1 ΔE 0.033
- Azul #1D5DEC ΔE 0.038
- Bright Blue #0165FC ΔE 0.042
- Neon Blue #4361EE ΔE 0.045
- Clear Blue #247AFD ΔE 0.055
- Warm Blue #4B57DB ΔE 0.061
- Electric Blue #0652FF ΔE 0.071
Use #006CE3 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.