#0660C8
Closest named color: Mid Blue (#276AB3). oklch(50.7% 0.179 257.3), rgb(6, 96, 200).
Aa
White text reads best on this color (5.97:1).
About this color
#0660C8 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.179 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.048 away. White text reads best on it, at 5.97:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #0660C8 |
| RGB | rgb(6, 96, 200) |
| HSL | hsl(212, 94%, 40%) |
| OKLCH | oklch(50.7% 0.179 257.3) |
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 #0660C8 | 5.97:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #0660C8 | 3.51:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #0660C8 text on white | 5.97:1 | AA | Lc 79.1 | Fine for body text |
| #0660C8 text on black | 3.51:1 | AA large text | Lc -22.7 | 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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C6DBF9
oklch(88.5% 0.047 257.3)
-
Step 300
300
#9DC3F8
oklch(80.9% 0.086 256.8)
-
Step 400
400
#67A2F5
oklch(70.8% 0.137 257.1)
-
Step 500
500
#3A87F2
oklch(63.1% 0.178 257.5)
-
Step 600
600
#0F6EE0
oklch(55.6% 0.192 257.3)
-
Step 700
700 (this color)
#0660C8
oklch(50.7% 0.179 257.3)
-
Step 800
800
#074B9D
oklch(42.6% 0.147 257.3)
-
Step 900
900
#12407D
oklch(37.8% 0.115 257.2)
-
Step 950
950
#0C2649
oklch(27% 0.072 256.9)
#0660C8 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) | #106CCC | 0.033 |
| Deuteranopia (no green cones) | #005CC6 | 0.011 |
| Tritanopia (no blue cones) | #007A8B | 0.134 |
| Achromatopsia (no color) | #636363 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0660C8
#0660C8
oklch(50.7% 0.179 257.3)
- #865C00
#865C00
oklch(50.7% 0.106 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 #0660C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.048
- Azul #1D5DEC ΔE 0.057
- Warm Blue #4B57DB ΔE 0.060
- Royal Blue #4169E1 ΔE 0.061
- Cerulean Blue #056EEE ΔE 0.067
- French Blue #436BAD ΔE 0.069
- Blue Blue #2242C7 ΔE 0.069
- Neon Blue #4361EE ΔE 0.073
Use #0660C8 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.