#5B85B2
Closest named color: Off Blue (#5684AE). oklch(60.4% 0.083 251), rgb(91, 133, 178).
Aa
Black text reads best on this color (5.44:1).
About this color
#5B85B2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.083 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.009 away. Black text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #5B85B2 |
| RGB | rgb(91, 133, 178) |
| HSL | hsl(211, 36%, 53%) |
| OKLCH | oklch(60.4% 0.083 251) |
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 #5B85B2 | 3.85:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #5B85B2 | 5.44:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #5B85B2 text on white | 3.85:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #5B85B2 text on black | 5.44:1 | AA | Lc -35.7 | 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 500.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CFDBE8
oklch(88.6% 0.022 250.2)
-
Step 300
300
#AEC3DB
oklch(80.9% 0.041 251.8)
-
Step 400
400
#83A4C8
oklch(70.7% 0.064 250.9)
-
Step 500
500 (this color)
#5B85B2
oklch(60.4% 0.083 251)
-
Step 600
600
#4977A7
oklch(55.7% 0.091 250.7)
-
Step 700
700
#3A638F
oklch(49% 0.085 251.5)
-
Step 800
800
#305174
oklch(42.6% 0.07 251.1)
-
Step 900
900
#2B435E
oklch(37.6% 0.055 252.2)
-
Step 950
950
#1A2837
oklch(27.1% 0.034 250.8)
#5B85B2 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) | #7387B4 | 0.031 |
| Deuteranopia (no green cones) | #687EB1 | 0.023 |
| Tritanopia (no blue cones) | #348F94 | 0.072 |
| Achromatopsia (no color) | #828282 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B85B2
#5B85B2
oklch(60.4% 0.083 251)
- #A17947
#A17947
oklch(60.5% 0.083 71.3)
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 #5B85B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.009
- Dusty Blue #5A86AD ΔE 0.009
- Cool Blue #4984B8 ΔE 0.021
- Steel Blue #4682B4 ΔE 0.024
- Faded Blue #658CBB ΔE 0.026
- Stormy Blue #507B9C ΔE 0.043
- Silver Lake Blue #778DA9 ΔE 0.047
- Cerulean #457B9D ΔE 0.049
Use #5B85B2 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.