#006EFB
Closest named color: Cerulean Blue (#056EEE). oklch(57.5% 0.227 259.3), rgb(0, 110, 251).
Aa
Black text reads best on this color (4.62:1).
About this color
#006EFB is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.227 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.020 away. Black text reads best on it, at 4.62:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.227) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #006EFB |
| RGB | rgb(0, 110, 251) |
| HSL | hsl(214, 100%, 49%) |
| OKLCH | oklch(57.5% 0.227 259.3) |
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 #006EFB | 4.54:1 | AA | Lc -76.0 | Fine for body text |
| Black text on #006EFB | 4.62:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #006EFB text on white | 4.54:1 | AA | Lc 70.5 | Content text, not long reading |
| #006EFB text on black | 4.62:1 | AA | Lc -31.1 | Non-text elements, placeholder text |
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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFE
oklch(93.6% 0.029 257.8)
-
Step 200
200
#C3DBFF
oklch(88.5% 0.056 258.4)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#64A0FF
oklch(70.8% 0.153 259.2)
-
Step 500
500
#3584FF
oklch(63.2% 0.199 259.3)
-
Step 600
600 (this color)
#006EFB
oklch(57.5% 0.227 259.3)
-
Step 700
700
#0058CB
oklch(49.1% 0.193 259.2)
-
Step 800
800
#0047A8
oklch(42.6% 0.168 259.4)
-
Step 900
900
#0A3D88
oklch(37.8% 0.136 259.3)
-
Step 950
950
#092450
oklch(27% 0.087 259.9)
#006EFB 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) | #0081FF | 0.047 |
| Deuteranopia (no green cones) | #006CF8 | 0.007 |
| Tritanopia (no blue cones) | #0092AA | 0.171 |
| Achromatopsia (no color) | #767676 | 0.227 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #006EFB
#006EFB
oklch(57.5% 0.227 259.3)
- #9E6F00
#9E6F00
oklch(57.5% 0.119 79.2)
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 #006EFB, closest first.
No curated palette has a color within ΔE 0.04 of #006EFB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.020
- Bright Blue #0165FC ΔE 0.021
- Clear Blue #247AFD ΔE 0.034
- Neon Blue #4361EE ΔE 0.044
- Azul #1D5DEC ΔE 0.044
- Royal Blue #4169E1 ΔE 0.049
- Electric Blue #0652FF ΔE 0.061
- Warm Blue #4B57DB ΔE 0.076
Use #006EFB 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.