#4084BF
Closest named color: Cool Blue (#4984B8). oklch(59.6% 0.114 247.3), rgb(64, 132, 191).
Aa
Black text reads best on this color (5.27:1).
About this color
#4084BF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.114 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.013 away. Black text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #4084BF |
| RGB | rgb(64, 132, 191) |
| HSL | hsl(208, 50%, 50%) |
| OKLCH | oklch(59.6% 0.114 247.3) |
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 #4084BF | 3.98:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #4084BF | 5.27:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #4084BF text on white | 3.98:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #4084BF text on black | 5.27:1 | AA | Lc -34.7 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADCED
oklch(88.6% 0.03 246.6)
-
Step 300
300
#A4C5E3
oklch(80.9% 0.055 246)
-
Step 400
400
#72A6D6
oklch(70.7% 0.09 247.2)
-
Step 500
500 (this color)
#4084BF
oklch(59.6% 0.114 247.3)
-
Step 600
600
#2A78B7
oklch(55.6% 0.123 247.1)
-
Step 700
700
#1C659E
oklch(49.2% 0.115 247.1)
-
Step 800
800
#1A5280
oklch(42.6% 0.096 247.5)
-
Step 900
900
#1C4467
oklch(37.6% 0.075 247.8)
-
Step 950
950
#12283C
oklch(26.9% 0.047 247.8)
#4084BF 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) | #6A86C2 | 0.045 |
| Deuteranopia (no green cones) | #587ABE | 0.033 |
| Tritanopia (no blue cones) | #009299 | 0.086 |
| Achromatopsia (no color) | #7F7F7F | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4084BF
#4084BF
oklch(59.6% 0.114 247.3)
- #AB7027
#AB7027
oklch(59.5% 0.114 67.5)
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 #4084BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.013
- Steel Blue #4682B4 ΔE 0.017
- Water Blue #0E87CC ΔE 0.029
- Off Blue #5684AE ΔE 0.032
- Windows Blue #3778BF ΔE 0.036
- Dusty Blue #5A86AD ΔE 0.038
- Blue NCS #118AB2 ΔE 0.038
- Faded Blue #658CBB ΔE 0.047
Use #4084BF 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.