#5B85BF
Closest named color: Cool Blue (#4984B8). oklch(61.1% 0.1 256.7), rgb(91, 133, 191).
Aa
Black text reads best on this color (5.55:1).
About this color
#5B85BF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.100 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.022 away. Black text reads best on it, at 5.55:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.55:1 |
| White text | 3.78:1 |
Values
| HEX | #5B85BF |
| RGB | rgb(91, 133, 191) |
| HSL | hsl(215, 44%, 55%) |
| OKLCH | oklch(61.1% 0.1 256.7) |
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 #5B85BF | 3.78:1 | AA large text | Lc -70.7 | Content text, not long reading |
| Black text on #5B85BF | 5.55:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #5B85BF text on white | 3.78:1 | AA large text | Lc 65.2 | Content text, not long reading |
| #5B85BF text on black | 5.55:1 | AA | Lc -36.4 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEB
oklch(88.4% 0.027 257)
-
Step 300
300
#ADC2E1
oklch(80.8% 0.05 258)
-
Step 400
400
#81A3D2
oklch(70.8% 0.079 256.6)
-
Step 500
500 (this color)
#5B85BF
oklch(61.1% 0.1 256.7)
-
Step 600
600
#4774B2
oklch(55.5% 0.109 256.7)
-
Step 700
700
#386199
oklch(49% 0.102 256.6)
-
Step 800
800
#2F507C
oklch(42.8% 0.083 256.1)
-
Step 900
900
#2A4264
oklch(37.6% 0.066 257.2)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#5B85BF 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) | #6E88C2 | 0.025 |
| Deuteranopia (no green cones) | #627FBE | 0.017 |
| Tritanopia (no blue cones) | #27929A | 0.088 |
| Achromatopsia (no color) | #838383 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B85BF
#5B85BF
oklch(61.1% 0.1 256.7)
- #A57B36
#A57B36
oklch(61.1% 0.1 77.2)
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 #5B85BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.022
- Faded Blue #658CBB ΔE 0.026
- Off Blue #5684AE ΔE 0.027
- Dusty Blue #5A86AD ΔE 0.029
- Steel Blue #4682B4 ΔE 0.030
- Water Blue #0E87CC ΔE 0.051
- Windows Blue #3778BF ΔE 0.055
- Blue NCS #118AB2 ΔE 0.057
Use #5B85BF 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.