#4F83A0
Closest named color: Stormy Blue (#507B9C). oklch(58.5% 0.071 234.3), rgb(79, 131, 160).
Aa
Black text reads best on this color (5.08:1).
About this color
#4F83A0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.071 and its hue 234°. 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 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 5.08:1 |
| White text | 4.12:1 |
Values
| HEX | #4F83A0 |
| RGB | rgb(79, 131, 160) |
| HSL | hsl(201, 34%, 47%) |
| OKLCH | oklch(58.5% 0.071 234.3) |
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 #4F83A0 | 4.12:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #4F83A0 | 5.08:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #4F83A0 text on white | 4.12:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #4F83A0 text on black | 5.08:1 | AA | Lc -33.4 | 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
#CEDBE3
oklch(88.4% 0.018 234.5)
-
Step 300
300
#ADC5D3
oklch(81% 0.033 233.4)
-
Step 400
400
#82A6BC
oklch(70.6% 0.051 235.3)
-
Step 500
500
#6190AB
oklch(63% 0.065 234.4)
-
Step 600
600 (this color)
#4F83A0
oklch(58.5% 0.071 234.3)
-
Step 700
700
#386781
oklch(49.2% 0.066 234.5)
-
Step 800
800
#2F5469
oklch(42.7% 0.055 234.9)
-
Step 900
900
#2A4555
oklch(37.6% 0.043 235.6)
-
Step 950
950
#192932
oklch(27.1% 0.027 233.8)
#4F83A0 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) | #7582A1 | 0.046 |
| Deuteranopia (no green cones) | #6A79A0 | 0.040 |
| Tritanopia (no blue cones) | #248B8C | 0.056 |
| Achromatopsia (no color) | #7D7D7D | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F83A0
#4F83A0
oklch(58.5% 0.071 234.3)
- #9D7053
#9D7053
oklch(58.4% 0.071 53.7)
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 #4F83A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.023
- Off Blue #5684AE ΔE 0.024
- Dusty Blue #5A86AD ΔE 0.025
- Cerulean #457B9D ΔE 0.027
- Steel Blue #4682B4 ΔE 0.033
- Grey Blue #647D8E ΔE 0.034
- Cool Blue #4984B8 ΔE 0.037
- Dull Blue #49759C ΔE 0.042
Use #4F83A0 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.