#5777DD
Closest named color: Cornflower (#6A79F7). oklch(59.6% 0.159 268.2), rgb(87, 119, 221).
Aa
Black text reads best on this color (5.08:1).
About this color
#5777DD is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.159 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.047 away. Black text reads best on it, at 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.159) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.08:1 |
| White text | 4.12:1 |
Values
| HEX | #5777DD |
| RGB | rgb(87, 119, 221) |
| HSL | hsl(226, 66%, 60%) |
| OKLCH | oklch(59.6% 0.159 268.2) |
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 #5777DD | 4.12:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #5777DD | 5.08:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #5777DD text on white | 4.12:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #5777DD text on black | 5.08:1 | AA | Lc -33.5 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F7
oklch(88.6% 0.043 268.2)
-
Step 300
300
#ABBFF4
oklch(80.8% 0.078 268.5)
-
Step 400
400
#809DEE
oklch(70.8% 0.123 268.2)
-
Step 500
500 (this color)
#5777DD
oklch(59.6% 0.159 268.2)
-
Step 600
600
#4969D7
oklch(55.6% 0.173 268.2)
-
Step 700
700
#3B57BB
oklch(49.3% 0.161 268.2)
-
Step 800
800
#304797
oklch(42.6% 0.134 268.2)
-
Step 900
900
#2A3D78
oklch(37.7% 0.103 267.8)
-
Step 950
950
#192446
oklch(27% 0.065 268.3)
#5777DD 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) | #4683E1 | 0.032 |
| Deuteranopia (no green cones) | #2F77DB | 0.037 |
| Tritanopia (no blue cones) | #008E9F | 0.137 |
| Achromatopsia (no color) | #7D7D7D | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5777DD
#5777DD
oklch(59.6% 0.159 268.2)
- #9D7A00
#9D7A00
oklch(59.7% 0.122 88.5)
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 #5777DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.047
- Royal Blue #4169E1 ΔE 0.047
- Soft Blue #6488EA ΔE 0.050
- Windows Blue #3778BF ΔE 0.058
- Dark Sky Blue #448EE4 ΔE 0.059
- Clear Blue #247AFD ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.060
- Medium Slate Blue #7B68EE ΔE 0.064
Use #5777DD 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.