#4F84CB
Closest named color: Cool Blue (#4984B8). oklch(60.9% 0.123 256.2), rgb(79, 132, 203).
Aa
Black text reads best on this color (5.49:1).
About this color
#4F84CB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.123 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.031 away. Black text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.49:1 |
| White text | 3.82:1 |
Values
| HEX | #4F84CB |
| RGB | rgb(79, 132, 203) |
| HSL | hsl(214, 54%, 55%) |
| OKLCH | oklch(60.9% 0.123 256.2) |
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 #4F84CB | 3.82:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #4F84CB | 5.49:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #4F84CB text on white | 3.82:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #4F84CB text on black | 5.49:1 | AA | Lc -36.1 | 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
#E3EBF6
oklch(93.7% 0.017 256.3)
-
Step 200
200
#CBDBF0
oklch(88.6% 0.034 255.2)
-
Step 300
300
#A8C3E8
oklch(81% 0.06 256.3)
-
Step 400
400
#79A3DC
oklch(70.7% 0.096 256.2)
-
Step 500
500 (this color)
#4F84CB
oklch(60.9% 0.123 256.2)
-
Step 600
600
#3A73C0
oklch(55.5% 0.134 256.7)
-
Step 700
700
#2C60A5
oklch(49% 0.124 256.5)
-
Step 800
800
#254F86
oklch(42.7% 0.103 256.1)
-
Step 900
900
#23426B
oklch(37.7% 0.08 256.1)
-
Step 950
950
#15273F
oklch(27% 0.051 256.1)
#4F84CB 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) | #6689CE | 0.030 |
| Deuteranopia (no green cones) | #557DCA | 0.019 |
| Tritanopia (no blue cones) | #00949E | 0.102 |
| Achromatopsia (no color) | #828282 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F84CB
#4F84CB
oklch(60.9% 0.123 256.2)
- #AC7713
#AC7713
oklch(60.9% 0.123 76.2)
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 #4F84CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.031
- Water Blue #0E87CC ΔE 0.037
- Steel Blue #4682B4 ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.042
- Faded Blue #658CBB ΔE 0.045
- Windows Blue #3778BF ΔE 0.045
- Off Blue #5684AE ΔE 0.045
- Dusty Blue #5A86AD ΔE 0.049
Use #4F84CB 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.