#7178BB
Closest named color: Off Blue (#5684AE). oklch(59.5% 0.102 278.3), rgb(113, 120, 187).
Aa
Black text reads best on this color (5.10:1).
About this color
#7178BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.102 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.053 away. Black text reads best on it, at 5.10:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #7178BB |
| RGB | rgb(113, 120, 187) |
| HSL | hsl(234, 35%, 59%) |
| OKLCH | oklch(59.5% 0.102 278.3) |
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 #7178BB | 4.11:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #7178BB | 5.10:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #7178BB text on white | 4.11:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #7178BB text on black | 5.10:1 | AA | Lc -33.5 | 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 500.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D4D8EC
oklch(88.5% 0.028 276.8)
-
Step 300
300
#B9BEE1
oklch(80.9% 0.05 278.8)
-
Step 400
400
#959CD2
oklch(70.7% 0.079 278.4)
-
Step 500
500 (this color)
#7178BB
oklch(59.5% 0.102 278.3)
-
Step 600
600
#656BB3
oklch(55.5% 0.111 278.5)
-
Step 700
700
#54599A
oklch(49% 0.103 278.5)
-
Step 800
800
#45497D
oklch(42.7% 0.086 278.8)
-
Step 900
900
#3A3E65
oklch(37.9% 0.067 278.2)
-
Step 950
950
#22243B
oklch(27% 0.043 279.3)
#7178BB 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) | #6280BE | 0.027 |
| Deuteranopia (no green cones) | #5D7AB9 | 0.027 |
| Tritanopia (no blue cones) | #5B8591 | 0.089 |
| Achromatopsia (no color) | #7D7D7D | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7178BB
#7178BB
oklch(59.5% 0.102 278.3)
- #8F7F2E
#8F7F2E
oklch(59.5% 0.102 98)
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 #7178BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.053
- Cool Blue #4984B8 ΔE 0.055
- Dusty Blue #5A86AD ΔE 0.056
- Faded Blue #658CBB ΔE 0.056
- Steel Blue #4682B4 ΔE 0.057
- Deep Lilac #966EBD ΔE 0.060
- Lavender Gray #7E7F9A ΔE 0.063
- Windows Blue #3778BF ΔE 0.065
Use #7178BB 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.