#4D7FCF
Closest named color: Windows Blue (#3778BF). oklch(59.9% 0.134 259.4), rgb(77, 127, 207).
Aa
Black text reads best on this color (5.25:1).
About this color
#4D7FCF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.134 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.038 away. Black text reads best on it, at 5.25:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 5.25:1 |
| White text | 3.99:1 |
Values
| HEX | #4D7FCF |
| RGB | rgb(77, 127, 207) |
| HSL | hsl(217, 58%, 56%) |
| OKLCH | oklch(59.9% 0.134 259.4) |
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 #4D7FCF | 3.99:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #4D7FCF | 5.25:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #4D7FCF text on white | 3.99:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #4D7FCF text on black | 5.25:1 | AA | Lc -34.6 | 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 500.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CBDAF2
oklch(88.5% 0.037 259.8)
-
Step 300
300
#A8C2EC
oklch(80.9% 0.066 259.9)
-
Step 400
400
#79A2E2
oklch(70.8% 0.105 259.1)
-
Step 500
500 (this color)
#4D7FCF
oklch(59.9% 0.134 259.4)
-
Step 600
600
#3B71C7
oklch(55.6% 0.146 259.4)
-
Step 700
700
#2D5EAC
oklch(49% 0.136 259.4)
-
Step 800
800
#264D8B
oklch(42.6% 0.112 259.3)
-
Step 900
900
#24416F
oklch(37.7% 0.087 259.3)
-
Step 950
950
#152641
oklch(26.9% 0.056 259.3)
#4D7FCF 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) | #5C86D2 | 0.027 |
| Deuteranopia (no green cones) | #4A7ACD | 0.014 |
| Tritanopia (no blue cones) | #00919D | 0.112 |
| Achromatopsia (no color) | #7F7F7F | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D7FCF
#4D7FCF
oklch(59.9% 0.134 259.4)
- #A77600
#A77600
oklch(60% 0.124 79.6)
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 #4D7FCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.038
- Water Blue #0E87CC ΔE 0.040
- Cool Blue #4984B8 ΔE 0.042
- Steel Blue #4682B4 ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.046
- Soft Blue #6488EA ΔE 0.054
- Off Blue #5684AE ΔE 0.057
- Faded Blue #658CBB ΔE 0.060
Use #4D7FCF 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.