#4C83BF
Closest named color: Cool Blue (#4984B8). oklch(59.9% 0.109 252), rgb(76, 131, 191).
Aa
Black text reads best on this color (5.30:1).
About this color
#4C83BF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.109 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.012 away. Black text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #4C83BF |
| RGB | rgb(76, 131, 191) |
| HSL | hsl(211, 47%, 52%) |
| OKLCH | oklch(59.9% 0.109 252) |
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 #4C83BF | 3.95:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #4C83BF | 5.30:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #4C83BF text on white | 3.95:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #4C83BF text on black | 5.30:1 | AA | Lc -34.9 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CBDBED
oklch(88.5% 0.03 251.3)
-
Step 300
300
#A8C4E3
oklch(81% 0.053 251.1)
-
Step 400
400
#79A4D5
oklch(70.6% 0.086 252.2)
-
Step 500
500 (this color)
#4C83BF
oklch(59.9% 0.109 252)
-
Step 600
600
#3976B6
oklch(55.6% 0.118 251.7)
-
Step 700
700
#2B639D
oklch(49.1% 0.11 251.7)
-
Step 800
800
#25517F
oklch(42.7% 0.091 251.6)
-
Step 900
900
#234366
oklch(37.6% 0.071 252.1)
-
Step 950
950
#15283C
oklch(27.1% 0.045 250.9)
#4C83BF 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 | 0.036 |
| Deuteranopia (no green cones) | #5A7BBE | 0.025 |
| Tritanopia (no blue cones) | #009198 | 0.091 |
| Achromatopsia (no color) | #808080 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C83BF
#4C83BF
oklch(59.9% 0.109 252)
- #A8742A
#A8742A
oklch(59.9% 0.11 72)
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 #4C83BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.012
- Steel Blue #4682B4 ΔE 0.018
- Off Blue #5684AE ΔE 0.029
- Dusty Blue #5A86AD ΔE 0.034
- Water Blue #0E87CC ΔE 0.037
- Windows Blue #3778BF ΔE 0.039
- Faded Blue #658CBB ΔE 0.041
- Blue NCS #118AB2 ΔE 0.046
Use #4C83BF 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.