#4F789A
Closest named color: Stormy Blue (#507B9C). oklch(55.6% 0.07 244.5), rgb(79, 120, 154).
Aa
White text reads best on this color (4.68:1).
About this color
#4F789A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.070 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.009 away. White text reads best on it, at 4.68:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.48:1 |
| White text | 4.68:1 |
Values
| HEX | #4F789A |
| RGB | rgb(79, 120, 154) |
| HSL | hsl(207, 32%, 46%) |
| OKLCH | oklch(55.6% 0.07 244.5) |
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 #4F789A | 4.68:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #4F789A | 4.48:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #4F789A text on white | 4.68:1 | AA | Lc 72.4 | Content text, not long reading |
| #4F789A text on black | 4.48:1 | AA large text | Lc -29.3 | Dividers and decoration only |
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
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#D0DBE4
oklch(88.6% 0.017 242.5)
-
Step 300
300
#B0C3D4
oklch(80.8% 0.032 245.2)
-
Step 400
400
#87A5BE
oklch(70.8% 0.05 243.7)
-
Step 500
500
#688EAE
oklch(63.1% 0.064 244.5)
-
Step 600
600 (this color)
#4F789A
oklch(55.6% 0.07 244.5)
-
Step 700
700
#406583
oklch(49.2% 0.064 244.1)
-
Step 800
800
#35526B
oklch(42.7% 0.054 245.5)
-
Step 900
900
#2E4457
oklch(37.7% 0.043 245.3)
-
Step 950
950
#1B2833
oklch(27% 0.027 244.6)
#4F789A 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) | #6A789C | 0.034 |
| Deuteranopia (no green cones) | #607099 | 0.029 |
| Tritanopia (no blue cones) | #2D8083 | 0.059 |
| Achromatopsia (no color) | #747474 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F789A
#4F789A
oklch(55.6% 0.07 244.5)
- #906B46
#906B46
oklch(55.6% 0.07 65.5)
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 #4F789A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.009
- Cerulean #457B9D ΔE 0.012
- Dull Blue #49759C ΔE 0.013
- Metallic Blue #4F738E ΔE 0.021
- Muted Blue #3B719F ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.035
- Grey Blue #647D8E ΔE 0.037
- Off Blue #5684AE ΔE 0.043
Use #4F789A 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.