#4F7CA6
Closest named color: Stormy Blue (#507B9C). oklch(57.1% 0.082 247.8), rgb(79, 124, 166).
Aa
Black text reads best on this color (4.76:1).
About this color
#4F7CA6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.082 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.015 away. Black text reads best on it, at 4.76:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.76:1 |
| White text | 4.40:1 |
Values
| HEX | #4F7CA6 |
| RGB | rgb(79, 124, 166) |
| HSL | hsl(209, 36%, 48%) |
| OKLCH | oklch(57.1% 0.082 247.8) |
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 #4F7CA6 | 4.40:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #4F7CA6 | 4.76:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #4F7CA6 text on white | 4.40:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #4F7CA6 text on black | 4.76:1 | AA | Lc -31.2 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AEC3D8
oklch(80.8% 0.038 248.3)
-
Step 400
400
#84A4C4
oklch(70.6% 0.059 248.7)
-
Step 500
500
#648EB5
oklch(63.1% 0.075 247.3)
-
Step 600
600 (this color)
#4F7CA6
oklch(57.1% 0.082 247.8)
-
Step 700
700
#3C648A
oklch(49.1% 0.076 248.4)
-
Step 800
800
#325270
oklch(42.8% 0.063 248)
-
Step 900
900
#2C445B
oklch(37.8% 0.05 248.2)
-
Step 950
950
#1A2835
oklch(27% 0.031 247.2)
#4F7CA6 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) | #6B7DA8 | 0.035 |
| Deuteranopia (no green cones) | #5F74A5 | 0.027 |
| Tritanopia (no blue cones) | #20868A | 0.071 |
| Achromatopsia (no color) | #787878 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F7CA6
#4F7CA6
oklch(57.1% 0.082 247.8)
- #986E40
#986E40
oklch(57.1% 0.082 67.4)
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 #4F7CA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.015
- Cerulean #457B9D ΔE 0.018
- Steel Blue #4682B4 ΔE 0.024
- Dull Blue #49759C ΔE 0.025
- Off Blue #5684AE ΔE 0.026
- Cool Blue #4984B8 ΔE 0.031
- Dusty Blue #5A86AD ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.035
Use #4F7CA6 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.