#577ED6
Closest named color: Soft Blue (#6488EA). oklch(60.6% 0.141 264.6), rgb(87, 126, 214).
Aa
Black text reads best on this color (5.36:1).
About this color
#577ED6 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.141 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.042 away. Black text reads best on it, at 5.36:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.36:1 |
| White text | 3.91:1 |
Values
| HEX | #577ED6 |
| RGB | rgb(87, 126, 214) |
| HSL | hsl(222, 61%, 59%) |
| OKLCH | oklch(60.6% 0.141 264.6) |
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 #577ED6 | 3.91:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #577ED6 | 5.36:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #577ED6 text on white | 3.91:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #577ED6 text on black | 5.36:1 | AA | Lc -35.3 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CDD9F3
oklch(88.4% 0.038 265.8)
-
Step 300
300
#ABC1EE
oklch(81% 0.068 264.5)
-
Step 400
400
#7E9FE6
oklch(70.7% 0.111 264.7)
-
Step 500
500 (this color)
#577ED6
oklch(60.6% 0.141 264.6)
-
Step 600
600
#456DCC
oklch(55.5% 0.154 264.7)
-
Step 700
700
#375BB1
oklch(49.2% 0.143 264.6)
-
Step 800
800
#2E4B8F
oklch(42.8% 0.118 264.6)
-
Step 900
900
#293F72
oklch(37.7% 0.092 264.8)
-
Step 950
950
#182543
oklch(27% 0.059 265)
#577ED6 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) | #5787D9 | 0.024 |
| Deuteranopia (no green cones) | #467BD4 | 0.021 |
| Tritanopia (no blue cones) | #00929F | 0.124 |
| Achromatopsia (no color) | #818181 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577ED6
#577ED6
oklch(60.6% 0.141 264.6)
- #A47B00
#A47B00
oklch(60.7% 0.124 85.1)
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 #577ED6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.042
- Dark Sky Blue #448EE4 ΔE 0.044
- Windows Blue #3778BF ΔE 0.051
- Water Blue #0E87CC ΔE 0.054
- Cool Blue #4984B8 ΔE 0.055
- Cornflower #6A79F7 ΔE 0.058
- Steel Blue #4682B4 ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.065
Use #577ED6 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.