#4C839E
Closest named color: Stormy Blue (#507B9C). oklch(58.3% 0.071 231.1), rgb(76, 131, 158).
Aa
Black text reads best on this color (5.04:1).
About this color
#4C839E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.071 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.023 away. Black text reads best on it, at 5.04:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 5.04:1 |
| White text | 4.16:1 |
Values
| HEX | #4C839E |
| RGB | rgb(76, 131, 158) |
| HSL | hsl(200, 35%, 46%) |
| OKLCH | oklch(58.3% 0.071 231.1) |
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 #4C839E | 4.16:1 | AA large text | Lc -74.0 | Content text, not long reading |
| Black text on #4C839E | 5.04:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #4C839E text on white | 4.16:1 | AA large text | Lc 68.5 | Content text, not long reading |
| #4C839E text on black | 5.04:1 | AA | Lc -33.1 | 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 600.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDCE3
oklch(88.6% 0.018 229)
-
Step 300
300
#ADC5D2
oklch(81% 0.032 231.4)
-
Step 400
400
#80A7BB
oklch(70.7% 0.051 230.7)
-
Step 500
500
#5F91AA
oklch(63.1% 0.066 230.9)
-
Step 600
600 (this color)
#4C839E
oklch(58.3% 0.071 231.1)
-
Step 700
700
#356880
oklch(49.2% 0.067 230.6)
-
Step 800
800
#2D5468
oklch(42.6% 0.055 232.4)
-
Step 900
900
#294654
oklch(37.7% 0.042 230.2)
-
Step 950
950
#182931
oklch(27% 0.027 229.2)
#4C839E 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) | #76819F | 0.050 |
| Deuteranopia (no green cones) | #6A789E | 0.044 |
| Tritanopia (no blue cones) | #1D8A8C | 0.052 |
| Achromatopsia (no color) | #7C7C7C | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C839E
#4C839E
oklch(58.3% 0.071 231.1)
- #9E6F54
#9E6F54
oklch(58.3% 0.072 50.7)
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 #4C839E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.023
- Cerulean #457B9D ΔE 0.026
- Off Blue #5684AE ΔE 0.028
- Dusty Blue #5A86AD ΔE 0.029
- Grey Blue #647D8E ΔE 0.034
- Steel Blue #4682B4 ΔE 0.036
- Teal Blue #01889F ΔE 0.039
- Cool Blue #4984B8 ΔE 0.040
Use #4C839E 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.