#006BBF
Closest named color: Mid Blue (#276AB3). oklch(52.4% 0.155 251.5), rgb(0, 107, 191).
Aa
White text reads best on this color (5.44:1).
About this color
#006BBF is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.155 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.022 away. White text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.85:1 |
| White text | 5.44:1 |
Values
| HEX | #006BBF |
| RGB | rgb(0, 107, 191) |
| HSL | hsl(206, 100%, 37%) |
| OKLCH | oklch(52.4% 0.155 251.5) |
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 #006BBF | 5.44:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #006BBF | 3.85:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #006BBF text on white | 5.44:1 | AA | Lc 76.4 | Fine for body text |
| #006BBF text on black | 3.85:1 | AA large text | Lc -25.3 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DBF3
oklch(88.4% 0.04 253)
-
Step 300
300
#A0C4ED
oklch(80.8% 0.07 252)
-
Step 400
400
#6BA5E4
oklch(70.8% 0.111 251.5)
-
Step 500
500
#3F8DDC
oklch(63.2% 0.142 251.3)
-
Step 600
600 (this color)
#006BBF
oklch(52.4% 0.155 251.5)
-
Step 700
700
#0262AE
oklch(49.1% 0.143 251.2)
-
Step 800
800
#0B508D
oklch(42.7% 0.119 251.5)
-
Step 900
900
#154371
oklch(37.7% 0.093 251.7)
-
Step 950
950
#0E2842
oklch(27.1% 0.058 250.8)
#006BBF 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) | #3E72C2 | 0.041 |
| Deuteranopia (no green cones) | #1663BD | 0.021 |
| Tritanopia (no blue cones) | #007F8B | 0.113 |
| Achromatopsia (no color) | #6A6A6A | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #006BBF
#006BBF
oklch(52.4% 0.155 251.5)
- #925D00
#925D00
oklch(52.4% 0.113 71.1)
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 #006BBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.022
- French Blue #436BAD ΔE 0.046
- Windows Blue #3778BF ΔE 0.049
- Nice Blue #107AB0 ΔE 0.053
- Flat Blue #3C73A8 ΔE 0.056
- Ocean Blue #03719C ΔE 0.062
- Muted Blue #3B719F ΔE 0.063
- Royal Blue #4169E1 ΔE 0.066
Use #006BBF 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.