#4F7DBB
Closest named color: Steel Blue (#4682B4). oklch(58.5% 0.108 256.3), rgb(79, 125, 187).
Aa
Black text reads best on this color (4.98:1).
About this color
#4F7DBB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.108 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.021 away. Black text reads best on it, at 4.98:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 4.98:1 |
| White text | 4.21:1 |
Values
| HEX | #4F7DBB |
| RGB | rgb(79, 125, 187) |
| HSL | hsl(214, 44%, 52%) |
| OKLCH | oklch(58.5% 0.108 256.3) |
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 #4F7DBB | 4.21:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #4F7DBB | 4.98:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #4F7DBB text on white | 4.21:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #4F7DBB text on black | 4.98:1 | AA | Lc -32.7 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEB
oklch(88.4% 0.027 257)
-
Step 300
300
#ADC3E0
oklch(81% 0.048 255.4)
-
Step 400
400
#81A3D1
oklch(70.7% 0.078 256.1)
-
Step 500
500
#618BC5
oklch(63% 0.1 256.6)
-
Step 600
600 (this color)
#4F7DBB
oklch(58.5% 0.108 256.3)
-
Step 700
700
#386199
oklch(49% 0.102 256.6)
-
Step 800
800
#2F507C
oklch(42.8% 0.083 256.1)
-
Step 900
900
#2A4264
oklch(37.6% 0.066 257.2)
-
Step 950
950
#19273A
oklch(27% 0.041 256.3)
#4F7DBB 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) | #6381BE | 0.027 |
| Deuteranopia (no green cones) | #5577BA | 0.017 |
| Tritanopia (no blue cones) | #008B93 | 0.095 |
| Achromatopsia (no color) | #7B7B7B | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F7DBB
#4F7DBB
oklch(58.5% 0.108 256.3)
- #A07223
#A07223
oklch(58.5% 0.109 76.5)
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 #4F7DBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.021
- Cool Blue #4984B8 ΔE 0.022
- Windows Blue #3778BF ΔE 0.029
- Off Blue #5684AE ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.045
- Water Blue #0E87CC ΔE 0.046
- Stormy Blue #507B9C ΔE 0.048
Use #4F7DBB 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.