#6477B4
Closest named color: Steel Blue (#4682B4). oklch(58% 0.097 270), rgb(100, 119, 180).
Aa
Black text reads best on this color (4.83:1).
About this color
#6477B4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.097 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.042 away. Black text reads best on it, at 4.83:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 4.83:1 |
| White text | 4.33:1 |
Values
| HEX | #6477B4 |
| RGB | rgb(100, 119, 180) |
| HSL | hsl(226, 35%, 55%) |
| OKLCH | oklch(58% 0.097 270) |
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 #6477B4 | 4.33:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #6477B4 | 4.83:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #6477B4 text on white | 4.33:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #6477B4 text on black | 4.83:1 | AA | Lc -31.7 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D3D9EA
oklch(88.6% 0.024 270.3)
-
Step 300
300
#B5C0DE
oklch(80.9% 0.044 269.5)
-
Step 400
400
#8F9FCD
oklch(70.7% 0.07 269.7)
-
Step 500
500
#7487C0
oklch(63.1% 0.089 269.6)
-
Step 600
600 (this color)
#6477B4
oklch(58% 0.097 270)
-
Step 700
700
#4D5D94
oklch(49% 0.091 270.5)
-
Step 800
800
#3F4C78
oklch(42.6% 0.075 270.5)
-
Step 900
900
#354061
oklch(37.7% 0.059 269.4)
-
Step 950
950
#1F2639
oklch(27.1% 0.037 268.4)
#6477B4 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) | #617DB7 | 0.016 |
| Deuteranopia (no green cones) | #5A76B3 | 0.013 |
| Tritanopia (no blue cones) | #48848D | 0.087 |
| Achromatopsia (no color) | #797979 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6477B4
#6477B4
oklch(58% 0.097 270)
- #91772E
#91772E
oklch(58% 0.096 89.3)
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 #6477B4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.042
- Off Blue #5684AE ΔE 0.042
- Cool Blue #4984B8 ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.047
- Windows Blue #3778BF ΔE 0.049
- Stormy Blue #507B9C ΔE 0.050
- Dull Blue #49759C ΔE 0.052
- Flat Blue #3C73A8 ΔE 0.052
Use #6477B4 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.