#5B84CA
Closest named color: Cool Blue (#4984B8). oklch(61.4% 0.116 260.6), rgb(91, 132, 202).
Aa
Black text reads best on this color (5.59:1).
About this color
#5B84CA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.116 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.035 away. Black text reads best on it, at 5.59:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.59:1 |
| White text | 3.75:1 |
Values
| HEX | #5B84CA |
| RGB | rgb(91, 132, 202) |
| HSL | hsl(218, 51%, 57%) |
| OKLCH | oklch(61.4% 0.116 260.6) |
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 #5B84CA | 3.75:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #5B84CA | 5.59:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #5B84CA text on white | 3.75:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #5B84CA text on black | 5.59:1 | AA | Lc -36.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ACC2E6
oklch(81% 0.056 260.2)
-
Step 400
400
#80A1DA
oklch(70.6% 0.092 261.1)
-
Step 500
500 (this color)
#5B84CA
oklch(61.4% 0.116 260.6)
-
Step 600
600
#4672BD
oklch(55.7% 0.127 260.4)
-
Step 700
700
#385FA3
oklch(49.1% 0.118 260.7)
-
Step 800
800
#2F4E84
oklch(42.8% 0.097 260.8)
-
Step 900
900
#29416A
oklch(37.7% 0.077 260.5)
-
Step 950
950
#19263E
oklch(27% 0.049 262)
#5B84CA 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) | #6889CD | 0.022 |
| Deuteranopia (no green cones) | #5A7FC9 | 0.014 |
| Tritanopia (no blue cones) | #16939D | 0.104 |
| Achromatopsia (no color) | #848484 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B84CA
#5B84CA
oklch(61.4% 0.116 260.6)
- #A87C20
#A87C20
oklch(61.5% 0.116 80.9)
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 #5B84CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.035
- Faded Blue #658CBB ΔE 0.038
- Steel Blue #4682B4 ΔE 0.042
- Off Blue #5684AE ΔE 0.045
- Dark Sky Blue #448EE4 ΔE 0.045
- Dusty Blue #5A86AD ΔE 0.047
- Water Blue #0E87CC ΔE 0.049
- Soft Blue #6488EA ΔE 0.050
Use #5B84CA 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.