#4D7FBC
Closest named color: Cool Blue (#4984B8). oklch(58.9% 0.109 254.3), rgb(77, 127, 188).
Aa
Black text reads best on this color (5.07:1).
About this color
#4D7FBC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.109 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.017 away. Black text reads best on it, at 5.07:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #4D7FBC |
| RGB | rgb(77, 127, 188) |
| HSL | hsl(213, 45%, 52%) |
| OKLCH | oklch(58.9% 0.109 254.3) |
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 #4D7FBC | 4.13:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #4D7FBC | 5.07:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #4D7FBC text on white | 4.13:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #4D7FBC text on black | 5.07:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#ACC3E0
oklch(80.9% 0.048 254.3)
-
Step 400
400
#7FA3D1
oklch(70.6% 0.079 254.8)
-
Step 500
500
#5E8CC5
oklch(63.1% 0.1 254.4)
-
Step 600
600 (this color)
#4D7FBC
oklch(58.9% 0.109 254.3)
-
Step 700
700
#356299
oklch(49.1% 0.102 254.5)
-
Step 800
800
#2D507C
oklch(42.7% 0.084 255)
-
Step 900
900
#284364
oklch(37.8% 0.066 254.2)
-
Step 950
950
#18273A
oklch(26.9% 0.041 254.8)
#4D7FBC 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) | #6683BF | 0.032 |
| Deuteranopia (no green cones) | #5778BB | 0.021 |
| Tritanopia (no blue cones) | #008D95 | 0.092 |
| Achromatopsia (no color) | #7D7D7D | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D7FBC
#4D7FBC
oklch(58.9% 0.109 254.3)
- #A37226
#A37226
oklch(58.9% 0.109 74)
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 #4D7FBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.017
- Steel Blue #4682B4 ΔE 0.018
- Off Blue #5684AE ΔE 0.031
- Windows Blue #3778BF ΔE 0.031
- Dusty Blue #5A86AD ΔE 0.038
- Water Blue #0E87CC ΔE 0.042
- Flat Blue #3C73A8 ΔE 0.048
- Stormy Blue #507B9C ΔE 0.049
Use #4D7FBC 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.