#5F84BE
Closest named color: Cool Blue (#4984B8). oklch(61% 0.098 259.1), rgb(95, 132, 190).
Aa
Black text reads best on this color (5.53:1).
About this color
#5F84BE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.098 and its hue 259°. 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 5.53:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #5F84BE |
| RGB | rgb(95, 132, 190) |
| HSL | hsl(217, 42%, 56%) |
| OKLCH | oklch(61% 0.098 259.1) |
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 #5F84BE | 3.79:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #5F84BE | 5.53:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #5F84BE text on white | 3.79:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #5F84BE text on black | 5.53:1 | AA | Lc -36.3 | 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
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AEC2E0
oklch(80.9% 0.048 258.4)
-
Step 400
400
#84A2D1
oklch(70.7% 0.077 259.2)
-
Step 500
500 (this color)
#5F84BE
oklch(61% 0.098 259.1)
-
Step 600
600
#4C73B1
oklch(55.5% 0.107 259.3)
-
Step 700
700
#3D6198
oklch(49.2% 0.098 258.6)
-
Step 800
800
#334F7C
oklch(42.7% 0.083 259.5)
-
Step 900
900
#2C4263
oklch(37.7% 0.063 258.3)
-
Step 950
950
#1A273A
oklch(27% 0.04 257.8)
#5F84BE 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) | #6E88C0 | 0.023 |
| Deuteranopia (no green cones) | #627FBD | 0.014 |
| Tritanopia (no blue cones) | #349199 | 0.087 |
| Achromatopsia (no color) | #838383 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F84BE
#5F84BE
oklch(61% 0.098 259.1)
- #A37C38
#A37C38
oklch(61.1% 0.098 79)
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 #5F84BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.026
- Faded Blue #658CBB ΔE 0.026
- Off Blue #5684AE ΔE 0.028
- Dusty Blue #5A86AD ΔE 0.030
- Steel Blue #4682B4 ΔE 0.032
- Water Blue #0E87CC ΔE 0.055
- Silver Lake Blue #778DA9 ΔE 0.056
- Windows Blue #3778BF ΔE 0.056
Use #5F84BE 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.