#4F7D99
Closest named color: Stormy Blue (#507B9C). oklch(56.8% 0.066 236.3), rgb(79, 125, 153).
Aa
Black text reads best on this color (4.72:1).
About this color
#4F7D99 is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.066 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.009 away. Black text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #4F7D99 |
| RGB | rgb(79, 125, 153) |
| HSL | hsl(203, 32%, 45%) |
| OKLCH | oklch(56.8% 0.066 236.3) |
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 #4F7D99 | 4.44:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #4F7D99 | 4.72:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #4F7D99 text on white | 4.44:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #4F7D99 text on black | 4.72:1 | AA | Lc -30.9 | 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 600.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AFC4D2
oklch(80.9% 0.03 237)
-
Step 400
400
#85A6BB
oklch(70.8% 0.048 236.3)
-
Step 500
500
#6590AA
oklch(63.2% 0.061 235.6)
-
Step 600
600 (this color)
#4F7D99
oklch(56.8% 0.066 236.3)
-
Step 700
700
#3C667F
oklch(49% 0.062 236.1)
-
Step 800
800
#325367
oklch(42.6% 0.051 236.3)
-
Step 900
900
#2C4554
oklch(37.7% 0.04 235.6)
-
Step 950
950
#1A2831
oklch(26.8% 0.025 237.2)
#4F7D99 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) | #707C9A | 0.041 |
| Deuteranopia (no green cones) | #667499 | 0.036 |
| Tritanopia (no blue cones) | #2C8486 | 0.052 |
| Achromatopsia (no color) | #787878 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F7D99
#4F7D99
oklch(56.8% 0.066 236.3)
- #956D50
#956D50
oklch(56.8% 0.066 56.9)
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 #4F7D99, 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 0.014
- Dull Blue #49759C ΔE 0.027
- Grey Blue #647D8E ΔE 0.029
- Metallic Blue #4F738E ΔE 0.030
- Off Blue #5684AE ΔE 0.036
- Dusty Blue #5A86AD ΔE 0.039
- Steel Blue #4682B4 ΔE 0.041
Use #4F7D99 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.