#5F83BE
Closest named color: Cool Blue (#4984B8). oklch(60.8% 0.099 260), rgb(95, 131, 190).
Aa
Black text reads best on this color (5.47:1).
About this color
#5F83BE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.099 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.026 away. Black text reads best on it, at 5.47:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.47:1 |
| White text | 3.83:1 |
Values
| HEX | #5F83BE |
| RGB | rgb(95, 131, 190) |
| HSL | hsl(217, 42%, 56%) |
| OKLCH | oklch(60.8% 0.099 260) |
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 #5F83BE | 3.83:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #5F83BE | 5.47:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #5F83BE text on white | 3.83:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #5F83BE text on black | 5.47:1 | AA | Lc -35.9 | 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
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AFC2E1
oklch(81% 0.049 260.2)
-
Step 400
400
#84A2D1
oklch(70.7% 0.077 259.2)
-
Step 500
500 (this color)
#5F83BE
oklch(60.8% 0.099 260)
-
Step 600
600
#4D73B2
oklch(55.6% 0.108 260.1)
-
Step 700
700
#3E6099
oklch(49.1% 0.1 260.2)
-
Step 800
800
#334F7C
oklch(42.7% 0.083 259.5)
-
Step 900
900
#2D4264
oklch(37.8% 0.064 259.7)
-
Step 950
950
#1A273A
oklch(27% 0.04 257.8)
#5F83BE 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) | #6C87C1 | 0.021 |
| Deuteranopia (no green cones) | #617EBD | 0.014 |
| Tritanopia (no blue cones) | #349098 | 0.089 |
| Achromatopsia (no color) | #828282 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F83BE
#5F83BE
oklch(60.8% 0.099 260)
- #A27B36
#A27B36
oklch(60.8% 0.099 79.2)
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 #5F83BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.026
- Off Blue #5684AE ΔE 0.029
- Faded Blue #658CBB ΔE 0.029
- Dusty Blue #5A86AD ΔE 0.031
- Steel Blue #4682B4 ΔE 0.032
- Windows Blue #3778BF ΔE 0.054
- Water Blue #0E87CC ΔE 0.055
- Silver Lake Blue #778DA9 ΔE 0.058
Use #5F83BE 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.