#6180A5
Closest named color: Off Blue (#5684AE). oklch(59.1% 0.067 253.3), rgb(97, 128, 165).
Aa
Black text reads best on this color (5.13:1).
About this color
#6180A5 is a medium-dark, muted blue. In OKLCH its lightness is 59%, its chroma 0.067 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.018 away. Black text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.13:1 |
| White text | 4.08:1 |
Values
| HEX | #6180A5 |
| RGB | rgb(97, 128, 165) |
| HSL | hsl(213, 27%, 51%) |
| OKLCH | oklch(59.1% 0.067 253.3) |
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 #6180A5 | 4.08:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #6180A5 | 5.13:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #6180A5 text on white | 4.08:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #6180A5 text on black | 5.13:1 | AA | Lc -33.7 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE4
oklch(88.5% 0.016 253.9)
-
Step 300
300
#B3C2D4
oklch(80.8% 0.03 253)
-
Step 400
400
#8CA3BF
oklch(70.7% 0.049 253.5)
-
Step 500
500
#6F8CAF
oklch(63.1% 0.062 253.4)
-
Step 600
600 (this color)
#6180A5
oklch(59.1% 0.067 253.3)
-
Step 700
700
#476384
oklch(49.2% 0.063 253.1)
-
Step 800
800
#3B516B
oklch(42.8% 0.051 253.1)
-
Step 900
900
#324357
oklch(37.7% 0.041 252.9)
-
Step 950
950
#1E2733
oklch(27% 0.026 255.7)
#6180A5 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) | #7281A7 | 0.023 |
| Deuteranopia (no green cones) | #6A7BA4 | 0.017 |
| Tritanopia (no blue cones) | #49888C | 0.059 |
| Achromatopsia (no color) | #7E7E7E | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6180A5
#6180A5
oklch(59.1% 0.067 253.3)
- #967750
#967750
oklch(59% 0.067 72.3)
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 #6180A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.018
- Dusty Blue #5A86AD ΔE 0.019
- Stormy Blue #507B9C ΔE 0.029
- Steel Blue #4682B4 ΔE 0.034
- Grey Blue #647D8E ΔE 0.034
- Cool Blue #4984B8 ΔE 0.035
- Slate Gray #708090 ΔE 0.037
- Cerulean #457B9D ΔE 0.038
Use #6180A5 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.