#5681AC
Closest named color: Off Blue (#5684AE). oklch(59% 0.082 249.4), rgb(86, 129, 172).
Aa
Black text reads best on this color (5.13:1).
About this color
#5681AC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.082 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.008 away. Black text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.13:1 |
| White text | 4.09:1 |
Values
| HEX | #5681AC |
| RGB | rgb(86, 129, 172) |
| HSL | hsl(210, 34%, 51%) |
| OKLCH | oklch(59% 0.082 249.4) |
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 #5681AC | 4.09:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #5681AC | 5.13:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #5681AC text on white | 4.09:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #5681AC 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EBF1
oklch(93.7% 0.01 247.9)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AFC3D8
oklch(80.9% 0.037 249.6)
-
Step 400
400
#85A4C4
oklch(70.7% 0.058 249.5)
-
Step 500
500
#668DB5
oklch(63% 0.075 249.7)
-
Step 600
600 (this color)
#5681AC
oklch(59% 0.082 249.4)
-
Step 700
700
#3D648A
oklch(49.1% 0.076 249)
-
Step 800
800
#335270
oklch(42.8% 0.062 248.7)
-
Step 900
900
#2D445B
oklch(37.8% 0.049 249.2)
-
Step 950
950
#1A2835
oklch(27% 0.031 247.2)
#5681AC 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) | #7082AE | 0.033 |
| Deuteranopia (no green cones) | #657AAB | 0.025 |
| Tritanopia (no blue cones) | #2D8B90 | 0.070 |
| Achromatopsia (no color) | #7D7D7D | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5681AC
#5681AC
oklch(59% 0.082 249.4)
- #9D7445
#9D7445
oklch(59% 0.082 68.9)
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 #5681AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.008
- Dusty Blue #5A86AD ΔE 0.016
- Steel Blue #4682B4 ΔE 0.019
- Cool Blue #4984B8 ΔE 0.021
- Stormy Blue #507B9C ΔE 0.029
- Cerulean #457B9D ΔE 0.034
- Faded Blue #658CBB ΔE 0.041
- Dull Blue #49759C ΔE 0.043
Use #5681AC 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.